特別節目·中文精讀

阿揚娜·霍華德:人機互動與安全關鍵系統的倫理

Ayanna Howard: Human-Robot Interaction and Ethics of Safety-Critical Systems

機器人學家談人機互動的設計思路,以及醫療、自動駕駛等安全關鍵系統中的倫理與責任。

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阿揚娜·霍華德(Ayanna Howard)被問到"你見過的最了不起的機器人是誰"時,她說自己沒見過。

她是在電視裡認識那個機器人的。《傑森一家》(The Jetsons)裡的女僕羅西(Rosie),會做飯,會打掃,會管孩子。霍華德說,她是看著羅西長大的。

羅西身上有個矛盾。她幾乎是萬能的,可她又算不上一個"完美"的機器。她時不時會鬧點情緒,會在喬治做蠢事的時候頂他一句,會提醒他別太離譜。她關心人,尤其是那幾個孩子。

霍華德是佐治亞理工學院的機器人學教授,主持人類自動化系統實驗室,研究方向是人機互動、家用輔助機器人、治療機器人,以及極端環境下的遠端機器人探索。她觀察到一個現象:人們嘴上說要完美的機器人,真正讓他們產生信任的,恰恰是那點不完美。

完美在機器人學裡是個什麼詞

從理論角度看,完美和精確度綁在一起。一個函式,能不能百分之百正確地完成,零誤差。這是機器人學語境下的完美。

放到自動駕駛上就更清楚了。保持車道,綠燈走紅燈停,把場景裡所有的實體都準確識別出來。這套東西在技術上已經相當成熟,可它離人想要的差得很遠。

霍華德說,羅西按精確度標準衡量一點都不完美,但她完美地做到了另一件事:她適應人。而我們真正想要的完美,就是這個適應能力。至於百分之百遵守我們自己剛編出來的那些規則,其實沒那麼重要。

"我們想要的是機器人能適應我們,而不是百分之百執行那些我們隨手定下的規則。"(阿揚娜·霍華德)

她還舉了個開車的例子。如果所有人都完美駕駛,誰也到不了目的地。你闖過多少次於黃燈,因為有輛車眼看就要撞上你;你多少次從沒車的地方橫穿馬路,因為對面確實沒車。人類駕駛本來就帶著這些偏差,一部分原因是,這世界本來就是這麼運轉的。一個按字面意義做到完美的機器人,反而沒法跟我們共處。

自動駕駛卡在哪

這個行業的時間表一直在往後推。霍華德回憶,幾年前一大批公司重金下注自動駕駛,其中也包括不少機器人學家和投資人,有人放話五年之內無人車就能上路。現在有人說五年,有人說十年二十年,也有人乾脆說永遠不會。

目前跑得比較順的,基本都在半封閉環境裡。還是會有行人走動,會有商店,但不會有別的司機。因為其他人類司機才是真正的難題。她提到一個細節:如果前面那輛車貼著"學員駕駛"(Student Driver)的貼紙,你立刻就知道對方隨時會做出莫名其妙的動作;如果旁邊車裡坐著兩個年輕人有說有笑,你也立刻警覺起來。這種判斷依賴大量微小線索,你怎麼把它們塞進一個自動駕駛系統裡?

波士頓的十字路口各有各的性格,不同的街區不一樣,同一天的不同時段也不一樣。我們的大腦把這些都學會了,可你讓人自己內省,他講不出來。

有沒有捷徑?霍華德給的答案是一座為自動駕駛專門設計的新城或新街區。設計時就知道會有這些異常,就知道人是這個樣子,那就按這個假設來規劃。這裡仍然有人,只是噪音被壓到最低。住進來的人身上帶著自我選擇,房產銷售的時候就會把這一點寫進賣點。真出了事,住在這裡的人大概也比別處的人更寬容一些。

這是三條線索裡的兩條。第三條是法律責任,還有政策、政府那一堆扯不清的東西。霍華德說這部分她不太想碰。

殺人機率寫進目標函式

主持人萊克斯·弗裡德曼(Lex Fridman)丟擲一個更尖銳的問題:車在路上其實時時刻刻在互相威脅對方的生命。過路口需要果斷,需要冒一點風險。如果把駕駛行為壓縮成一個目標函式,裡面必然存在一個"致人死亡"的機率項。這個機率必須低到你在倫理上能接受,又必須高到別人不敢隨便欺負你、不敢在你面前大搖大擺地橫穿馬路。

行業裡有句話:車不會殺人,人才會殺人。霍華德順著這句往下推了一層。

"機器人演算法不會殺人,寫機器人演算法的人會殺人。"(阿揚娜·霍華德)

她說,起碼在近期和中期,人還在迴路裡。可能是駕駛員,可能是開發者。我們還沒到機器人自己寫機器人、自己定義行為的階段。

問題在於,一個開發者要對一個人的死亡負某種責任,這件事聽起來就讓人不安。所以她認為,倫理在工程社群裡必須被當成核心議題,因為它無法繞開。

你可以宣佈自己不碰武器化的 AI,這沒問題。可你寫的演算法可能會被用在醫療裡,可能會決定某個人能不能拿到某種藥。如果那個人沒拿到藥,死了,這算不算你的責任?

"如果你在寫程式碼的時候,沒有意識到自己手裡握著這種權力,那不是一個好的狀態。我們需要在程式設計的時候,比現在多得多地去想這件事。"(阿揚娜·霍華德)

她講了一段計算機行業的歷史。早年沒有專職測試,開發者自己測自己的程式碼,把所有情況跑一遍。後來大家發現這樣不行,漏掉的東西太多,於是有了測試崗。再往後,大多數開發者的態度變成了:編譯器報沒報錯,警告看一眼,差不多就行,剩下交給下一道流程。

霍華德說,倫理現在就處在"早期開發者自己測程式碼"那個階段。還沒有倫理測試員這個崗位,所以你只能自己看,自己問一句:這段程式碼在倫理上會產生什麼後果?

她拿醫生做類比。醫生遇到過病人沒能活下來的情況,他們會因此放棄嗎?不會。每一次面對新的病人,他們都知道這個人有可能救不回來,這個念頭一直在背景裡。醫學院教的是責任,同時也教工具,讓醫生不至於在這樣的壓力下崩潰。我們給開發者的是什麼呢?

大禮伴隨著大責任,這是醫學院的話。霍華德覺得,如果把這句話改一改用到開發者身上,情況會好很多:寫程式碼是一份大禮,它帶來的是大責任,這兩件事要合在一起講。

弗裡德曼說他自己最近幾個月收到了不少資訊,說他手上沾著血,因為他在做半自動駕駛相關的工作。他的邏輯是,半自動意味著人會失去警覺,而失去警覺的人會受傷。他有很多個晚上為此睡不著。當然他可以自我開解:美國每年有四萬人死於交通事故,我們做這件事最終是為了救命。但現實是,你寫的程式碼有可能殺死某個人。

霍華德的回應是,"負擔"這個詞用錯了。她說這是一份饋贈,但你必須極度嚴肅地對待它。

偏見不是抽象概念

在一篇題為《關於我們自己和我們的機器人造物的醜陋真相》(The Ugly Truth About Ourselves and Our Robot Creations)的論文裡,霍華德梳理了幾類會影響機器人系統執行的偏見。

她先給了定義。偏見是我們所有人都有的一些預設觀念,涉及群體、習慣、身份。處理問題時,這些預設會影響我們的判斷和輸出。偏見可以是正面的也可以是負面的,而負面偏見一旦被意識到仍然繼續,就變成了歧視。

她舉的例子是青少年駕駛。保險公司對青少年司機收很高的保費,背後是年齡偏見,但它有資料支撐:青少年確實更容易出事故。家長們會抱怨,但幾乎沒人說這不公平。整個社會在這一點上出奇一致。

同樣一個例子換一下就不行了。假設保險公司因為某個波士頓街區事故多而提高保費,後來發現這個相關性其實對應的是社會經濟因素,那立刻就成了問題。這裡沒有清晰的分界線,這正是這類問題難辦的地方。

醫療領域的偏見更深。歷史上 FDA 的藥物試驗會排除育齡女性,導致很多藥在不同性別上的效果資料並不完整。放到機器人設計上,一個外骨骼該用什麼材料、多重、什麼形態,你打算圍繞誰來設計?美國女性的平均身高體重和男性有差異。如果你從第一天就沒想過這件事,你設計出來的東西最後往往剛好合適你自己實驗室裡的那批人。

資料的問題更麻煩。社會本身就帶著偏見,你收集來的資料,哪怕取樣方式再平衡,也還是裝著同樣的東西。預測性警務、犯罪再犯率評估、醫療演算法,都是這個邏輯。

她提到一篇被媒體起了聳動標題的醫療演算法論文,標題裡直接寫了"種族主義 AI"。霍華德說她本人不喜歡聳動標題,因為論文字身做的是一套完整分析,而媒體的標題會把討論帶偏。

但她的重點在另一處。這個演算法確實存在按種族區分的效果差異,我們需要做得更好,這是責任。可是還有一句話沒有被講出來。

"最差的 AI 仍然比我們好。你把人類裡最好的拿出來,在某些事情上,還是比不過最差的 AI。"(阿揚娜·霍華德)

弗裡德曼接著這個點往下說:我們給 AI 設的倫理門檻高得離譜,要求它絕對公平,而絕對公平的定義都還說不清。門檻設在不可能達到的位置,等於預設了失敗。但霍華德那句話更重要:即便如此,它還是比現在這個系統好。

霍華德補充了一個被低估的好處:AI 是可以被戳的。一家醫院或一座城市做得好不好,以前你不打官司就很難查證。現在你可以把資料跑一遍,指出這裡確實有問題,問題在哪,然後進入修復環節。這套流程形成了反饋閉環,比等著有人起訴快得多。

她舉了人臉識別的例子。喬伊·布奧拉姆維尼(Joy Buolamwini)點名了幾家公司,這些公司基本是尷尬地承認,然後修好了。再暴露新問題,再修。這個迴圈在把整個領域往更公平的方向推,前提是兩邊都願意動:開發者願意說"我聽到了,我們會改",外部的人願意指出問題。

懸賞一個倫理漏洞

既然偏見這麼多,有沒有系統性的解法?霍華德說現在有兩條路,第一條是做系統性的反饋和修正機制。

目前的狀況是零散的。某個研究者發現了不公平的結果,寫成論文發表,然後開發者或採用演算法的公司決定要不要修。整個過程由研究者的興趣驅動,這意味著大量沒被研究者看上眼的問題,根本沒人查。

第二條路,她半開玩笑地說,要去戳一下大公司。安全領域有漏洞賞金,誰找到安全漏洞就給錢。為什麼不能有倫理賞金?誰找到一個公平性漏洞,就給一筆錢。

這件事是雙贏。公司表現出自己在意這件事,不必把全部內部資源都投進去。而且每個人的偏見視角不同,有人關注年齡,就會去找年齡相關的漏洞;有人關注性別,就會去找性別相關的。最後你得到的是一堆不同視角的發現,而且是資料驅動的。

聊到 Twitter、Facebook 這類平臺,霍華德說這些公司其實很努力。弗裡德曼提到一個困境:人們拿來指責平臺的東西,往往是個人化的軼事證據,我記得我說過某句話就被封了,很難在大資料層面被公允地討論。

霍華德說,一部分憤怒來自依賴。我需要你的時候,你沒能為我工作。但還有一部分問題在於,平臺傾向於自己內部解決。她打了個比方:

"這就好比我是隻狐狸,然後我被派去看守雞舍,因為我覺得狐狸吃雞這個問題需要被關注。"(阿揚娜·霍華德)

內部修復存在利益衝突。真在內部發現了什麼,多半第一反應是趕緊修掉,最好媒體別知道。這種處理方式累積起來就是信任崩塌。她建議的做法是公開說:我們有這個問題,請社群幫我們一起修,找到的人給獎金。

AI 能不能當總統

弗裡德曼問,AI 有一天會不會被選為總統,或者進入國會。霍華德的回答很乾脆:她不相信 AI 應該當總統,但她相信總統應該把 AI 當顧問用。

總統身邊始終有一個內閣,每個人帶著各自的專業判斷,總統聽他們說。AI 完全可以扮演其中一個角色。醫療領域放一個,教育領域放一個,人類總理不清的那些事,交給它去算。因為最後拍板的仍然是個人,而我們作為社會,需要一個能被看作人的領導者。

她說很多人沒意識到,領導人做決定之前其實接收了大量建議。他們很少有清早醒來突然靈光一現的時刻,更常見的流程是先有個想法,再拿去聽反饋,反饋好就推,反饋不好就退回去再問一圈。

她為什麼還相信人

聊到人的善意,霍華德講了一件亞特蘭大的事。那年下雪,城市封了,其實雪不大,但結成了冰。結果有人開啟家門,招呼無處可去的人來住;酒店讓人睡大堂地板;雜貨店直接送吃的。沒有人在談價錢,陌生人之間互相問要不要捎你一程。

她說這件事說明,同情和愛是人身上更深的那一層。平時被滿足了、被照顧好了,我們才騰出精力去愛看戲。

弗裡德曼接過這個思路:分歧某種程度上是好時代的標誌,因為看別人吵架在哺乳動物層面是有娛樂性的。而 Twitter 和 Facebook 恰恰利用了這一點,爭議把人拉回平臺,平臺靠廣告掙錢。

霍華德補了一句:愛不太好賣。

NASA 實驗室裡那顆假眼珠

霍華德職業生涯的起點在 NASA 噴氣推進實驗室(JPL)。她印象最深的一次經歷,是看到一組人在做能實施眼科手術的機器人系統,時間大概是 1992 到 1994 年。

那是一套遠端操作裝置,用某種觸覺反饋(haptics)實現,今天達芬奇手術機器人的前身邏輯已經在那裡了。她走進實驗室,看見一個模擬的人臉模型,上面裝著假眼珠,旁邊是一支小鑽頭,操作者用觸覺裝置在遠端做手術。

讓她震動的是精度。那也是她第一次在物理世界裡親眼看到人和機器處在同一個空間裡協作。製造業裡的大型機械臂她見過,但那是隔離開的。這一次,一個人和一個機器人挨在一起,中間沒有任何屏障。

"那對我來說是個魔幻時刻。"

更早的種子來自電視。《無敵女金剛》(The Bionic Woman)讓她十二歲就決定要做機器人學家,那時她用的是一個更老的詞:控制論(cybernetics)。真正吸引她的是那些仿生部件,義肢那種東西。她說如果走上另一條路,她大概會去做生物醫學工程。

弗裡德曼說他最近見到了波士頓動力的 Spot,影片看過很多次,真見到實物、一對一相處的那幾分鐘,完全不一樣。他說那幾乎像是一次戀愛。霍華德完全理解,她當年在那個手術機器人實驗室裡感受到的就是這種東西。

她特別澄清了一點:她關心的是"類人"(human-like)。"人形"(humanoid)這個詞強調的是外形,那個方向本身吸引不了她。一隻機器人狗只要能在社交層面理解我們、回應我們,也算類人。人形機器人只有做到這一點,才真正進入她的研究範圍。

資料裝上情緒晶片之後

聊到太空機器人,霍華德說她最愛的是《星際迷航》。她說自己算過,按劇裡的年份,她活不到那個世界,但她非常想去,哪怕只是在最早的探險階段。

弗裡德曼問她怎麼看待資料(Data)這個角色,尤其是裝了情緒晶片之後。霍華德說那段時間資料確實是一團亂。原因在於,情緒會讓智慧體變得不理性。沒有情緒的資料可以推演,哪怕是在帶情緒的場景裡,他也能按利弊權衡。一旦有了情緒,他自己的情緒也進了評估指標,周圍人的狀態被擠到一邊。

這跟小孩的發展階段一樣。小孩非常自我中心。霍華德說,情緒成熟度停在小孩水平的成年人確實存在,因為發展這條路有人走完了,有人走了一半停了下來。

所以她認為心理學在機器人研究裡被嚴重低估。她的團隊大量閱讀認知科學和發展心理學的文獻,因為那些研究積累了關於人際關係的知識,包括各個發展階段的關鍵節點。他們會拿人際關係裡的規律去對照人機關係:有一部分能對上,有一部分對不上。對不上的時候就要追問,為什麼這個場景裡不一樣,另一個場景裡又一樣。

弗裡德曼問她,如果看二三十年後的自己,戴心理學帽子的時間會不會越來越多。她說最難的部分落在互動過程中的適應,也就是學習,心理學和傳統機器人學都還沒有直接對應它的答案。她把自己的轉變講了一遍:從電氣工程和控制理論出發,後來發現自己的演算法需要人的資料,再發現人的感知模型是關鍵,於是變成了人機互動研究者,現在又在這個基礎之上做 AI。

從控制理論轉進人機互動,在學術圈是高風險動作。那時候連相關的會議都還沒有。她說驅動她的是問題本身夠有意思,也夠難。她喜歡走進一間屋子,然後意識到自己不知道該怎麼做。如果一件事沒有意外、沒有驚喜,她反而覺得沒意思。不走這條路她可以掙更多錢,留在學術圈做這個,是因為可以一直走進那樣的屋子。

信任不是問卷上的那個勾

霍華德的研究重心落在過度信任上。

她給信任下的定義是行為層面的。信任體現在行為裡,跟你勾了哪個選項無關。如果你在使用技術的時候,行為上把它當成可信的來對待,那你就是信任它。

她的團隊做過這類調研。問"你信任機器人嗎",回答基本都是不。再問"你會跟著這個機器人進一棟著火的樓嗎",也基本都說不。然後再去看這些人的實際行為,答案就擺在那裡。

"真正重要的是行為。你走到街上之前有沒有勾選'我不信任自動駕駛',這件事不會影響別人,行為才會。"(阿揚娜·霍華德)

弗裡德曼說他讀到這類研究時常常覺得荒誕:把人點了一下某個答案當成信任的證據,幾乎像在用喜劇的方式編織關於真實行為的詩。

霍華德拿 Uber 舉例。它剛出現的時候,如果做一次問卷:你願意上一個陌生人的車,付錢讓他送你嗎?願意凌晨一點讓一個陌生人送你回家的單身女性有多少?大概沒什麼人會點頭。現在呢,人們把自己的孩子放進這樣的車裡。

過度信任跟第一次接觸的關係極大。第一印象好的話,後面出問題的機率會被壓下來,或者更容易被原諒。可技術從來不是百分之百準確的。怎麼把第一次接觸做對,目前還沒有答案。

她講了一個放射科的研究,讓她看到了希望。系統給醫生標註 X 光片上的可疑區域,只給一個選項時,會出現兩種極端:要麼完全不信,要麼無條件信,兩種都會漏掉病灶。改成給三個選項,哪怕系統已經算出最可疑的就是第一個,信任反而維持住了,整個群體的準確率也上升。

差別在於,醫生仍然在用自己的專業判斷做決策,人和系統之間的分工沒有被抹掉。

教育、再培訓和不是所有人都在同一條船上

談到人機互動的應用場景,霍華德先自嘲了一句,醫療只是她的偏見鏡頭之一,另一個是教育。美國有些學區的師生比已經離譜到很難想象這個教室裡還能發生學習,因為人力根本不夠。機器人可以進課堂,也可以進課後空間,補上某些社群缺失的資源。另一端是勞動力再培訓和就業轉型,機器人系統在這裡的作用會越來越大。

教育的具體問題在個性化。霍華德認為個性化很重要,但有一個說明:能個性化到群體層面就已經可以了。如果把一個人按某些維度歸到某一類,哪怕這不是為他量身定做的,只要能匹配這個群體的學習節奏和參與方式,效果就已經不一樣。

大班教學難就難在這裡。你按中位數教,兩端的人都不舒服。很聰明的孩子會因為無聊而搗亂,跟不上的孩子也會因為無聊而搗亂,原因不同,結果一樣。如果把群體的定義收窄,就能照顧到更多人的真實需求。

這其實就是推薦系統在做的事。弗裡德曼說他作為音樂聽眾,大概已經被歸類得很準了,而且準得有點讓人心酸。霍華德笑著說,把這一套搬到教育上沒有任何理由做不到。

至於她更看好哪一端,答案是勞動力再培訓。風險投資這幾年在教育上的投入,大頭流向了再培訓。政府投入也在增加,一部分動機是恐懼:AI 到底會替代掉多少崗位,那些不再納稅的人該怎麼辦。早期教育她不那麼樂觀,因為它要等十六到十八年才能看到結果,而掏錢的人很難對這麼久的時間尺度產生感覺。

弗裡德曼提到安德魯·楊(Andrew Yang)在競選總統時主推的全民基本收入。霍華德說她確實相信 AI 和機器人會擠掉一部分工作,也會造出新的工作。她擔心的另有其事:新造出來的會是些什麼樣的工作。

從佐治亞理工畢業的人沒問題,他們拿到的技能讓他們能適應,哪怕現在這份工作沒了。她擔心的是沒有這種教育質量的人,他們有沒有能力、有沒有背景去接住那些新崗位。這會讓社會內部以及國際之間的分化更嚴重。她還擔心一件事:能不能平等地接觸到這些好東西。

"像我這樣從佐治亞理工出來的人不會有事。但這只是人口裡很小的一部分。我們得從更全球的角度去考慮,讓所有人都能碰到醫療、教育、AI 這些美好的東西。"(阿揚娜·霍華德)

愛和被愛能不能被算出來

弗裡德曼問了一個偏浪漫的問題:《她》(Her)裡那種人工智慧伴侶,人能不能愛上它,它能不能愛回來。霍華德說,設計出讓人愛上它的系統,她認為完全可行。至於它愛回來這件事,它可以是"模擬愛"。

所謂模擬愛,就是在某些情境下把對方的需求放在自己的前面,把對方的幸福以某種權重寫進目標函式里,唯一的原因是"我在乎他"。這樣一來,最終的目標函式就變成了這段關係的持續時間。霍華德說,這種東西其實很容易設計。

弗裡德曼追問,那哪算得上愛。霍華德的回答是,我們其實沒有關於愛的經典定義,也沒有能力看穿另一個人的大腦去檢查裡面的演算法。

弗裡德曼把問題往前推了一步。如果這個系統說自己有意識,說自己害怕被關掉,說它愛你,那我們該怎麼辦?機器人有一天該不該擁有權利?

霍華德說,如果近期不處理這個問題,她能看到一個未來:這些智慧體在持續適應和學習之後,會提出某些東西應該是基本的。她希望我們在走到那一步之前就把問題解決掉。

至於這是不是壞事,取決於那時候機器人處在什麼位置。她給出的框架是分類:機器人大機率不會被當成擁有人權的人類,但可以被放進"財產"這一欄,也可以被放進"動物"這一欄,這兩欄裡的權利是不一樣的。

動物作為生命有自己的權利:不能被虐待,虐待了要坐牢,但它們不能投票,可以被安樂死。財產的權利則附著在所有人身上,別人砸了你的東西,受保護的是你。她提醒,社會對權利的定義是會變的。以前女性被視為財產,侵犯一個女性,在法律意義上等於損壞了另一個人的財產。

所以她設想的路徑是:某一天我們會確立某種基準規範,然後這個規範繼續演化。今天還有一些國家的女性權利狀況讓全世界看不懂,而世界的態度也在推動這個變化。

為什麼機器人公司一家接一家關門

聊到 Anki、Rethink Robotics 這些公司的倒閉,霍華德說每一家都有自己的故事,只有 Anki 她看不懂。從外部看,她看過他們的資料,看起來像是找到了產品市場匹配(product-market fit),融資卻停了。

她給產品市場匹配下的定義很直白:我有一個產品,想按某個價格賣。市場上願意按這個價格買的人,夠不夠多到讓我成為一家能持續盈利的公司。如果東西成本一千美元,所有人都想要,但只願意付一美元,那就沒有匹配,哪怕一美元有人買也不行。

iRobot 是個反例。它起家靠的是政府和軍方的合同,那些合同給了它活下去的資金,撐到了 Roomba 出現。Roomba 剛上市時的價格是早期嚐鮮者願意付的價格,那一批人足夠把它養到盈利。現在它證明了這個市場,對手也來了,歐洲還有一堆不那麼出名的產品。

霍華德說,從行業規律看,這不算壞時候,只是作為機器人學家會覺得沮喪。今天排在頭部的公司,大多數都不是第一個上場的。Google 不是第一個搜尋引擎,AltaVista 是。Facebook 不是第一個社交網路,MySpace 是。第一批玩家把市場驗證出來了,把熱度做起來了,然後沒走到下一層。真正走到下一層的是第二批。

機器人領域的第二批會不會出現,她說不確定。現在拿到風投的那些協作機器人公司,有的像 Rethink Robotics,有的像其他已經消失的名字,產品分佈在工廠、家庭、診所。她分不清這批是第二批,還是仍在第一批裡。自動駕駛那一批也一樣,說不清是第幾批。要等一個獨角獸出現才能判斷。

該不該害怕機器人

弗裡德曼問,大眾文化裡對波士頓動力那種足式機器人的恐懼,如果做一次心理分析,源頭在哪。霍華德的回答是分兩半的。

不該害怕,前提是我們這些做這行的人明白有些東西必須改。如果什麼都不改,那就該害怕。

要改的是思考方式。要考慮後果,要考慮倫理,要讓討論持續存在。不能再抱著"先部署出去,之後就不管了"的態度,不能忘了路上還有行人,一輛車可能變成武器。現在還看不到成型的解決方案,但至少有人開始把"釋出這些系統時要負倫理責任"當成一件正經事,包括機器人、醫療、自動駕駛,以及很少被公開討論的軍事領域。

軍事機器人會帶來同樣量級的影響。誰有權按下那個扳機,這類對話得有人來做。

總體判斷是:只要整個社群越來越多地去想倫理問題,人就不需要害怕。她認為正面影響的總和會壓過潛在的負面。

至於存在性威脅,她不信。她的類比是父母和孩子。父母希望孩子過上比自己更好的生活,希望他們走出去看世界。等到孩子長大,他們比父母聰明、有錢、機會更多,可能也不再聽父母的話了。但他們不會回頭把父母殺掉。因為在成長過程中,父母把價值觀裝了進去,把共同體的概念裝了進去。就算你更聰明、更有錢,這段關係裡剩下的還是愛和關心。

所以哪怕某天奇點真的來了,某個 1980 年代留下的老系統突然進化,它可能會說:我比你們聰明,我有意識,這些人類實在很蠢。然後它大概會補一句:但我就是沒法毀掉他們。出於感情。

弗裡德曼接了這個梗:逢年過節還是回來吃頓火雞。

她為什麼選《駭客帝國》

霍華德說,《駭客帝國》是她最喜歡的 AI 相關電影之一,因為裡面裝著她思考的所有東西。機器和人之間是一種共生關係,它們沒有毀滅人類,而是把人類養了起來。即便如此,機器也需要人類是幸福的,為了讓人幸福,它們不得不造出一個殘酷的世界,然後自己也活在裡面。

而人保留了選擇權。你可以留在那個有缺陷但完美的幻覺世界裡,也可以選擇出去,可能幾天沒飯吃,但完全是自主的。

她說這跟機器人未來的處境是同一件事。哪怕有一天機器人有了意識,它們仍然是我們社會的一部分,它們會和我們一樣受苦。最後一定得找到一個共生的平衡點。電影裡也有那樣一批人,倫理學家、機器人學家,知道這件事必須停下來,然後去做點什麼。

如果讓她挑一個科幻角色聊一天,她不會挑羅西,她對羅西的腦子沒興趣。她挑資料。而且是裝情緒晶片之前的資料,因為可以問他怎麼解決倫理問題。資料能一步步理性推演,在這個過程裡她也能把自己的想法理清楚。有些根本性的問題,只有他能幫著一起想。

霍華德在訪談的最後把問題交還給了一個更樸素的說法:機器人是人造出來的,它帶著我們的價值觀。既然如此,我們能做的事就很清楚。

可以馬上做的事

  • 寫完一段會影響人的程式碼之後,多問一句"它會傷害誰",把這個動作變成習慣,就像早年開發者必須自己跑一遍測試那樣。
  • 設計任何面向人的系統之前,先明確你在圍繞誰設計。把身高、體重、語言、性別、年齡這些變數顯式列出來,別預設採用自己和同事的身體資料。
  • 成立團隊或專案時,主動引入關注不同偏見維度的人。年齡、性別、種族、收入水平,各自的關注點不同,湊在一起才能覆蓋更大的問題面。
  • 如果想推動一家公司改進演算法的公平性,試著把外部審查變成一種激勵:設定倫理漏洞賞金,讓找出問題的人得到回報,別隻靠內部自查自糾。
  • 判斷一個技術能不能用,別隻看自己的態度,看你自己的行為。你會不會把車交給它,會不會把孩子放進去,行為比問卷上的勾選誠實得多。
  • 給系統做推薦時,優先給出多個選項,別隻給一個答案。保留使用者自己的判斷空間,信任和準確率往往能同時提升。
  • 在機器人、自動駕駛這類話題上保持接觸,別迴避。恐懼大多來自不瞭解,實際用過之後,人會進入更理性的判斷狀態。
  • 在關注 AI 帶來的效率增長時,同時關心誰能用上它。技術紅利的分配方式,和技術的效能一樣值得花時間討論。
文稿由本站用語音識別模型(基於官方釋出音訊)機器轉寫,可能有識別錯誤,人名與數字請以音訊為準。
[00:00:00] The following is a conversation with Ianna Howard. He's a roboticist, professor, Georgia Tech and director of the Human Automation Systems Lab with research interests and human robot interaction, assistive robots in the home, therapy, gaming apps and remote robotic exploration of extreme environments like me in her work, she cares a lot about both robots and human beings. And so I really enjoyed this conversation. This is the Artificial Intelligence Podcast. If you enjoy it, subscribe on YouTube, give it Five Stars and Apple, a podcast follow on Spotify, supported on Patreon or simply connect with me on Twitter. [00:00:41] Allex Friedman spelled F.R. IDM man. I recently started doing ads at the end of the introduction. I'll do one or two minutes after introducing the episode and never any ads in the middle that can break the flow of the conversation. I hope that works for you. It doesn't hurt the listening experience. This show was presented by Kashyap, the number one finance app in the App Store. I personally use cash to send money to friends, but you can also use it to buy, sell and deposit Bitcoin in just seconds. [00:01:11] Cash also has a new investing feature. You can buy fractions of a stock, say one dollar's worth no matter what the stock price is. Broker's services are provided by cash up investing, a subsidiary of Square and member SIPC. I'm excited to be working with cash out to support one of my favorite organizations called First Best known for their first robotics and Lego competitions. They educate and inspire hundreds of thousands of students and over one hundred and ten countries and have a perfect rating. [00:01:41] And Charity Navigator, which means that donated money is used to maximum effectiveness. When you get cash out from the App Store or Google Play and you Scolex podcast, you'll get ten dollars in cash. I will also donate ten dollars. The first, which again is an organization that I've personally seen, inspire girls and boys to dream of engineering a better world. And now here's my conversation with Alana Howard. What or who is the most amazing robot you've ever met or perhaps had the biggest impact on your career? [00:02:33] I haven't met her, but I grew up with her. But, of course, Rosie. [00:02:39] So and I think it's because also who's Rosie? Rosie from the Jetsons. She is all things to all people. Right? Think about it like anything you wanted. It was like magic. It happened. [00:02:52] So people not only anthropomorphize, but project whatever they wish for the robot to be onto other Rosie. [00:03:00] But also, I mean, think about it. She was socially engaging. She every so often had an attitude. Right. She kept us honest. She she would push back sometimes when, you know, George was doing some weird stuff, but she cared about people, especially the kids. [00:03:18] She she was like the perfect robot. [00:03:21] And you've said that people don't want the robots to be perfect. Can you elaborate that? What do you think that is? Just like you said, Rosie pushed back a little bit every once in a while. Yeah. So I think it's that. So you think about robotics in general. We want them because they enhance our quality of life. And usually that's linked to something that's functional. Right. Even if you think of self-driving cars, why is there a fascination? [00:03:47] Because people really do hate to drive like there's the like Saturday driving where I can just speed. [00:03:52] But then there was the I have to go to work every day and I'm in traffic for an hour. I mean, people really hate that. And so robots are designed to basically enhance our ability to increase our quality of life. [00:04:07] And so the perfection comes from this aspect of interaction. [00:04:12] If I think about how we drive, if we drove perfectly, we would never get anywhere. Right. So think about how many times you had to run past the light because you see the car behind you is about to crash into you or that little kid kind of runs into the the street. And so you have to cross on the other side because there's no cars. Right. Like, if you think about it, we are not perfect drivers. Some of it is because it's our world. [00:04:40] And so if you have a robot that is perfect in that sense of the word, they they wouldn't really be able to function with us. [00:04:48] Can you linger a little bit on the word perfection? So from the robotics perspective, what does that word mean and how is sort of the optimal behaviors you're describing different than what we think is perfection yet? [00:05:03] So perfection, if you think about it in the more theoretical point of view, it's really tied to accuracy. Right? So if I have a function, can I completed at 100 percent accuracy with zero errors? And so that's kind of everything about perfection in the sense of the word. [00:05:22] And in a self-driving car realm, do you think from a robotics perspective, we kind of think that perfection means following the rules perfectly, sort of defining staying in the lane, changing lanes. When there's a green light, you go on, there's a red light stop. And that that's the of and be able to perfectly see all the entities in the scene. That's the limit of what we think of as perfection. [00:05:49] And I think that's where the problem comes, is that when people think about perfection for robotics, the ones that are the most successful are the ones that are quote unquote perfect. Like said, Rosy is perfect, but she actually wasn't perfect in terms of accuracy, but she was perfect in terms of how she interacted and how she adapted. [00:06:08] And I think that's some of the disconnect, is that we really want perfection with respect to its ability to adapt to us. We don't really want perfection with respect to 100 percent accuracy, with respect to the rules that we just made up anyway. Right. And so I think there was this disconnect sometimes between what we really want and what happens. And we see this all the time, like in my research. Right. Like the the optimal quote unquote optimal interactions are when the robot is adapting based on the person, not a hundred percent following what's optimal based on the rules. [00:06:46] Just to linger on autonomous vehicles for second. Just your thoughts, maybe off the top of head is how hard is that problem, do you think? [00:06:55] Based on what we just talked about? You know, there's a lot of folks in the automotive industry, they're very confident from Elon Musk to way much to all these companies. [00:07:04] How hard is it to solve that last piece, last mile, the gap between the perfection and the human definition of how you actually function in this world? [00:07:16] And so this is a moving target. So I remember when all the big companies started to heavily invest in this and there was a number of even roboticists as well as, you know, folks who were putting in the VCs and corporations, Elon Musk being one of them that said, you know, self-driving cars on the road with people, you know, within five years. That was a little while ago. And now people are saying five years, 10 years, 20 years. [00:07:46] Some are saying never. Right. I think if you look at some of the things that are being successful is these basically fixed environments where you still have some anomalies, you still have people walking, you still have stores, but you don't have other drivers. [00:08:06] Right. Like other human drivers are is a dedicated space for the for the cars. [00:08:12] Because if you think about robotics in general, there's always been successful is I mean, you can say manufacturing like way back in the day. [00:08:19] Right. It was a fixed environment. Humans were not part of the equation. We're a lot better than that. But like when we. Can carve out scenarios that are closer to that space, then I think that it's where we are, so a closed campus where you don't have self-driving cars and maybe some protection so that the students don't get in front just because they want to see what happens, like having a little bit. [00:08:46] I think that's where we're going to see the most success in the near future and be slow moving. [00:08:50] Right. [00:08:51] Not not, you know, 55, 60, 70 miles an hour, but the the speed of a golf cart. Right. [00:08:59] So that said, the most successful in the automotive industry, robots operating today in the hands of real people are ones that are traveling over 55 miles an hour and in unconstrained environment, which is Tesla vehicles or Tesla autopilot. [00:09:16] So I just I would love to hear some of your just thoughts of two things. So, one, I don't know if you've gotten to see you've heard about something called Smart Somin where Tesla system autopilot system, where the car drives zero occupancy, no driver in the parking lot slowly sort of tries to navigate the parking lot to find itself to you. And there's some incredible amounts of videos and just hilarity that happens as it awkwardly tries to navigate this environment. [00:09:48] But it's it's a beautiful non-verbal communication with machine and human that I think is a it's like it's some of the work that you do in this kind of interesting human robot interaction space. What are your thoughts in general about it? [00:10:01] So I do have that feature of the gravitas. I do mainly because I'm a gadget freak. [00:10:08] Right. So I think it's a gadget that happens to have some wheels. And yeah, I've seen some of the videos. But what's your experience like? [00:10:16] I mean, you're you're a human robot interaction, roboticists, your legit sort of expert in the field. So what does it feel for a machine to come to you? [00:10:25] It's one of these very fascinating things. But also, I am hyper hyper alert, right? Like I'm hyper alert, like my butt. My thumb is like, OK, I'm ready to take over. [00:10:40] Even when I'm in my car, I'm doing things like automated backing into. [00:10:45] So there's like a feature where you can do this automated backing into a parking space or bring the car out of your garage or even, you know, pseudo autopilot on the freeway. Right. [00:10:57] I'm hypersensitive. I can feel like as I'm navigating like, yeah, that's an area right there. Like, I'm very aware of it, but I'm also fascinated by it. And it does get better. Like, I look and see it's learning from all of these people who are cutting it on like. [00:11:19] Every time I come on, it's getting better, right, and so I think that's what's amazing about it, is that this nice dance of you're still hyper vigilant, so you're still not trusting it at all. Yeah. And yet you're using it on the highway. [00:11:32] If I were to like, what, as a roboticist. Talk about trust a little bit. [00:11:39] How do you explain that you still use it. [00:11:42] Is it the gadget freak part like where you just enjoy exploring technology or is that the right actually balance between robotics and humans where you use it but don't trust it? And somehow there's this dance that ultimately is a positive. [00:11:59] Yeah. So I think I'm I just don't necessarily trust technology, but I'm an early adopter. Right. [00:12:07] So when it first comes out, I will use everything, but I will be very, very conscious of how I use it. [00:12:14] Do you read about or do you explore but just try to do like crudely, to put a crudely, do you read the manual or do you learn through exploration? [00:12:25] I'm an explorer. If I have to read the manual, then you know, I do design, then it's a bad user interface. It's a failure. Elon Musk is very confident that you kind of take it from where it is now to full autonomy, so from this human robot interaction, we don't really trust and then you try and then you catch it when it fails to it's going to incrementally improve itself into full or full. Well, you don't need to participate. [00:12:53] What's your sense of that trajectory? Is it feasible? So the promise there is by the end of next year, by the end of 2020, the current balance. [00:13:04] What's your sense about that journey that Tesla's on so that those kind of three, three things going on now? [00:13:13] I think. In terms of will people go like as a user, as a adopter, will you trust going to that point? [00:13:25] I think so. Right. [00:13:27] Like there are some users and it's because what happens is when technol when you're hypersensitive at the beginning and then the technology tends to work, your apprehension slowly, slowly goes away. [00:13:40] And as people, we tend to swing to the other extreme right because it's like, oh, I was like hyper, hyper fearful or hypersensitive and it was awesome. [00:13:51] And we just tend to swing. That's just human nature. [00:13:54] And so you will have I mean, it's a scary notion because most people are now extremely untrusting of autopilot. They use it, but they don't trust it. And it's a scary notion that there's a certain point where you allow yourself to look at the smartphone for like 20 seconds. And then there will be this phase shift where it'll be like 20 seconds, 30 seconds, one minute, two minutes. [00:14:17] It's a scary proposition, but that's people, right? That's human. That's humans. [00:14:22] I mean, I think of even our use of I mean, just everything on the Internet, right. [00:14:29] Like think about how reliant we are on certain apps and certain engines. [00:14:35] Right. Twenty years ago, people have been like, oh, yeah, that's stupid. Like, that makes no sense. Like, of course that's false. Like now it's just like, oh of course I've been using it. It's been correct all this time. Of course, aliens. I didn't think they existed, but now it says they do. Obviously percent earth is flat. [00:14:58] So OK, but you said three things. [00:15:01] So one is OK, so one is the human. And I think there will be a group of individuals that will swing. Right. I just teenagers. [00:15:08] I mean, it'll be Tina, it'll be adults. There's actually an age demographic that's optimal for technology adoption and you can actually find them and they're actually pretty easy to find. [00:15:21] I just based on their habits, based on. So someone like me who wouldn't wouldn't know roboticists would probably be the optimal kind of person. Right. Early adopter. OK, with technology very comfortable and not hypersensitive. Right. [00:15:37] I'm just hypersensitive because I designed this stuff. [00:15:39] Yeah. So there is a target demographic that will swing. [00:15:43] The other one though is you still have these humans that are on the road. That one is a harder, harder thing to do. And as long as we have people that are on the same streets, that's going to be the big issue. [00:16:00] And it's just because you can't possibly you can't possibly map the some of the silliness of human drivers. Right. Like as an example. When you're next to that car that has that big sticker called Student Driver, right, like you are like, oh, either I am going to like go around like we are. We know that that person is just going to make mistakes that make no sense. Right. How do you map that information? [00:16:29] Or if I am in a car and I look over and I see, you know, two fairly young looking individuals and there's no student driver bumper and I see them chit chatting to each other, I'm like, oh, yeah, that's an issue. Right. So how do you get that kind of information and that experience? Into a basically an autopilot. Yeah, and there's millions of cases like that where we take little hints to establish context. I mean, you said kind of beautifully poetic human things, but there's probably subtle things about the environment, about is about it being maybe time for commuters to start going home from work. [00:17:12] And therefore, you can make some kind of judgment about the good behavior of pedestrians or robots on time or even cities. [00:17:19] Right. Like if you're in Boston, how people cross the street like lights are not an issue versus other places where people will will actually wait for the crosswalk, Seattle or somewhere peaceful. [00:17:35] And but we would have also seen sort of just even in Boston, that intersection intersection is different so that every intersection has a personality of its own. So certain neighborhoods of Boston are different. So we kind of and based on different timing of day at night, it's also there's a there's a dynamic to human behavior that we kind of figure out ourselves. We're not be able to we're not able to introspect and figure it out. But somehow we our brain learns that we do. [00:18:07] And so you're you're saying is there. So that's the shortcut. [00:18:11] That's their shortcut for everybody. Is there something that could be done? You think that? You know, that's what we humans do. It's just like bird flight, right? That's this example they give for flight. Do you necessarily need to build a bird that flies or can you do an airplane? Is there a shortcut? [00:18:30] So I think the shortcut is and I kind of I talk about it as a fixed space where so imagine that there is a neighborhood that's a new smart city or a new neighborhood that says, you know what, we are going to design this new city based on supporting self-driving cars and then doing things, knowing that those anomalies, knowing that people are like this. Right. And designing it based on that assumption that, like we're going to have this, that would be an example of a shortcut. [00:19:02] So you still have people, but you do very specific things to try to minimize the noise a little bit as an example. [00:19:11] And the people themselves become accepting of the notion that there's autonomous cars. Right. [00:19:14] Right. Like they they they move into. So right now you have like a you will have a self selection bias. Right. Like individuals will move in to this neighborhood knowing like this is part of like the real estate pitch. [00:19:26] Right. [00:19:27] And so I think that's a way to do a shortcut when it allows you to deploy, it allows you to collect then data with these variances and anomalies because people are still people. [00:19:41] But it's it's a safer space and it's more of an accepting space, i.e. when something in that space might happen because things do because you already have the self selection, like people would be, I think, a little more forgiving than other places. [00:19:57] And you said three things that recover cover all of them. The third is the legal liability, which I don't really want to touch. [00:20:05] But it's still it's it's still of concern. And the mishmash of like with policy as well, sort of government all all that that whole that big ball of mess. [00:20:14] Yeah. Gotcha. So that's so we're out of time now. What do you think from a robotics perspective? [00:20:24] You know, if you're kind of honest of what cars do, they kind of kind of threaten each other's life all the time? [00:20:32] So cars are very I mean, in order to navigate intersections, there's assertiveness, there's a risk taking, and if you were to reduce it to an objective function, there's a probability of murder in that function, meaning you killing another human being. And you're using that, first of all, has to be low enough. To be acceptable to you on an ethical level, as an individual human being, but it has to be high enough for people to respect you, to not sort of take advantage you completely and jaywalk in front of you and so on. [00:21:06] So, I mean, I don't think there's a right answer here, but what's how do we solve that? How do we solve that? From a robotics perspective? One danger and human life is at stake. As they say, cars don't kill people. [00:21:19] People kill people. People. Oh, right. [00:21:24] So I think now robotic algorithms would be killing. [00:21:27] Right. So it will be robotics algorithms that are know. It will be robotic algorithms don't kill people. Developers of robotic algorithms kill people. Right. [00:21:37] I mean, one of the things is people are still in the loop. And at least in the near and mid-term, I think people will still be in the loop at some point, even if it's a developer. [00:21:47] Like we're not necessarily at the stage where, you know, robots are programming autonomous robots with different behaviors quite yet. [00:21:57] Not a scary notion. [00:21:58] Sorry to interrupt that a developer is has some responsibility in in the death of a human being. [00:22:06] That's I mean, I think that's why the whole aspect of ethics in our community is so, so important. [00:22:15] Right. Like because it's true if if if you think about it, you can basically say, I'm not going to work on weaponized A.I.. Right. Like people can say, that's not what I'm going to do. [00:22:27] But yet you are programming algorithms that might be used in health care, algorithms that might decide whether this person should get this medication or not. And they don't and they die. [00:22:37] You OK? So that is your responsibility. Right? And if you're not conscious and aware that you do have that power when you're coding and things like that, I think that's that's that's just not a good thing. Like, we need to think about this responsibility as we programmed robots and and computing devices much more than we are. [00:23:01] Yes. So it's not an option to not think about it, because I think it's a majority, I would say, of computer science sort of there. It's kind of a hot topic now. I think about bias and so on. But it's and we'll talk about it. [00:23:14] But usually it's kind of it's like a very particular group of people that work on that. [00:23:21] And then people who do like robotics are like, well, I don't have to think about that. There's other smart people thinking about it. It seems that everybody has to think about it. It's not you can't escape the ethics, whether it's bias or just every aspect of ethics that has to do with human beings. [00:23:39] Everyone. So think about I'm going to age myself, but I remember when we didn't have, like, testers. Right. [00:23:47] And so what did you do as a developer? You had to test your own code, right? [00:23:50] Like you had to go through all the cases and figure it out and, you know, and then they realized that, you know, like, we probably need to have testing because we're not getting all the things. And so from there, what happens is, like most developers, they do, you know, a little bit of testing, but it's usually like, OK, to my compiler bug out and you look at the warnings, OK, is that acceptable or not? [00:24:10] Right. Like, that's how you typically think about as a developer and you just assume that is going to go through another process and they're going to test it out. But I think we need to go back to those early days when, you know, you're a developer, you're developing. [00:24:24] There should be like this a you know, OK, let me look at the ethical outcomes of this, because there isn't a second, like, testing ethical testers. [00:24:33] Right? It's you know, we did it back in the early coding days. [00:24:38] I think that's where we are with respect to ethics. Like, let's go back to what was good practices only because we were just developing the field. [00:24:47] Yeah. And it's and it's a really heavy burden. I've had to feel it recently in the last few months. But I think it's a good one to feel like I've gotten the message more than one from people. You know, I've unfortunately gotten some attention recently and I've gotten messages that say that I have blood on my hands because of working on semi-autonomous vehicles. [00:25:13] The idea that you have semi-autonomous means people would become would lose vigilance and so on, as should be humans, as we described. And because of that, because of this idea that we're creating automation, there would be people be hurt because of it. [00:25:29] And I think it's a beautiful thing. I mean, it's you know, there's many nights where I wasn't able to sleep because of this notion. [00:25:36] You know, you really do think about people that might die because of this technology. [00:25:40] Of course, you can then start rationalizing, saying, well, you know what, 40 thousand people die in the United States every year and we're trying to ultimately try to save lives. But the reality is your code you've written might kill somebody. And that's an important burden to carry with you as you design the code. [00:25:58] I don't even think of it as a burden if we train this concept correctly from the beginning. [00:26:04] And I use and not to say that coding is like being a medical doctor, but think about it. [00:26:09] Medical doctors, if they've been in situations where their patient didn't survive, right. Do they give up and go away? No. Every time they come in, they know that there might be a possibility that this patient might not survive. And so when they approach every decision like that's in their back of their head. And so why isn't that? We aren't teaching. [00:26:33] And those are tools, though, right? [00:26:34] They are given some of the tools to address that so that they don't go crazy. But we don't give those tools so that it does feel like a burden versus something of I have a great gift and I can do great, awesome, good. But with it comes great responsibility. I mean, that's what we teach in terms of you think about the medical schools, right? Great gift. Great responsibility. [00:26:56] I think if we just change the messaging a little great gift being a developer, great responsibility. And this is how you combine those. [00:27:05] But do you think and this is really interesting. It's outside. I actually have no friends who are sort of surgeons or doctors. [00:27:15] And what does it feel like to make a mistake in a surgery and somebody to die because of that? [00:27:21] Like it's just something you could be taught in medical school, sort of how to be accepting of that risk. [00:27:27] So because I do a lot of work with health care robotics, I have not lost a patient, for example. The first one's always the hardest. [00:27:37] Right. But they really teach the value. Right. So they teach responsibility, but they also teach the value like. You're saving 40000, but in order to really feel good about that, when you come to a decision, you have to be able to say at the end, I did all that I could possibly do. Right, versus a well, I just picked the first widget and. Right. Like, so every decision is actually thought through is not a habit, is not a let me just take the best algorithm that my friend gave me. [00:28:13] Write it, say is this it. This is the best. Have I done my best to do good. Right. [00:28:20] And so you're right. And I think burden is the wrong word if it's it's a gift. But you have to treat it extremely seriously. Correct. So on a slightly related note in a recent paper, The Ugly Truth about ourselves and our robot creations, you discuss you highlight some biases that may affect the function of various robotic systems. Can you talk to, if you remember, examples of some? [00:28:47] There's a lot of examples I use. What is bias, first of all? So bias is this Inso bias, which is a definite prejudice. [00:28:55] So biases that we all have these preconceived notions about particular everything from particular groups to habits to identity. [00:29:06] Right. So we have these predispositions. And so when we address a problem, when we look at a problem, we make a decision. Those preconceived notions might affect our our outputs or outcomes. [00:29:19] So there the bias could be positive and negative. And then it's prejudice, the negative prejudices, the negative. [00:29:25] Right. [00:29:26] So prejudice that not only are you aware of your bias, but you are then take it and have a negative outcome, even though you are aware and there could be grey areas to all these grey areas. [00:29:41] That's the challenging aspect of all these questions. [00:29:44] So I always like so there's there's a funny one. And in fact, I think it might be in the paper because I think I talk about self-driving cars. [00:29:51] But think about this. We for teenagers, right. [00:29:56] Typically we insurance companies charge quite a bit of money if you have a teenage driver. [00:30:03] So you could say that's an age bias. Right. But no one will claim I mean, parents will be grumpy, but no one really says that that's not fair. [00:30:15] That's interesting. [00:30:16] We don't. That's right. That's right. It's everybody in human factors and safety research almost. I mean, it's quite ruthlessly critical of teenagers. And we don't question is that OK? Is that OK to be ageist in this kind of way? [00:30:34] It is. And it is age, right? It's definitely age. There's no question about it. And so so these are these this is a gray area, right? [00:30:42] Because you you know that, you know, teenagers are more likely to be in accidents. [00:30:48] And so there is actually some data to it. [00:30:50] But then if you take that same example and you say, well, I'm going to make the insurance higher for an area of Boston because there's a lot of accidents, and then they find out that that's correlated with socioeconomics, well, then it becomes a problem, right? Like that is not acceptable. [00:31:12] But yet the teenager, which is age. It's against age is right, so we figure that our society, by having conversations, by discourse throughout history, the definition of what is ethical or not has changed and hopefully always for the better. Correct. Correct. So in terms of bias or prejudice in robotic in algorithms, what what examples do you sometimes think about? [00:31:42] So I think about quite a bit the medical domain just because historically. Right. The health care domain has had these biases typically based on gender and ethnicity, primarily a little an age, but not so much. [00:32:00] You know, historically, if you think about FDA and drug trials, it's, you know, harder to find women that aren't childbearing. And so you may not test on drugs at the same level. [00:32:14] Right. So there's these things. And so if you think about robotics, right. Something as simple as I like to design and exoskeleton. [00:32:24] Right. What should the material be? What should the weight be? What should the form factor be? Are you who are you going to design it around? [00:32:34] I will say that in the U.S., you know, women average height and weight is slightly different than guys. [00:32:40] So who are you going to choose? Like if you are not thinking about it from the beginning, as you know? [00:32:47] OK, I when I design this and I look at the algorithms and I design the control system and the forces and the talks, if you're not thinking about, well, you have different types of body structure, you're going to design to, you know, what you're used to. [00:33:01] Oh, this fits in my all the folks in my lab. [00:33:04] Right. So think about it from the very beginning. It's important. What about sort of algorithms that train on data kind of thing? [00:33:13] Sadly, our society already has a lot of negative bias and so we collect a lot of data. Even if it's a balanced way, there's going to contain the same bias that a society contains. [00:33:26] And so, yeah, was is there is there things there that bother you? Yeah. [00:33:31] So you actually said something. You had said how we have biases, but hopefully we learn from them and we become better. Right. And so that's where we are now. Right. So the data that we're collecting is historic. It's so it's based on these things when we knew it was bad to discriminate. But that's the data we have and we're trying to fix it now, but we're fixing it based on the data that was used in the first place. [00:33:57] Right. [00:33:59] And so and so the decisions and you can look at everything from the the whole aspect of predictive policing, criminal recidivism. There was a recent paper that had the health care algorithms which had a kind of a sensational titles. I'm not pro sensationalism and titles, but. But did you read it right? [00:34:20] So, yeah, it makes you read it. [00:34:22] But I'm like, really like you could have. [00:34:26] What's the topic of the sensationalism? I mean, what's underneath it? What if you could sort of educate me? And what kind of bias creeps into the health care space? Yeah. So I mean, you already kind of. [00:34:38] So this one was the headline was racist. I algorithm's OK. [00:34:45] Like, OK, that's totally a click bait title. Yeah. [00:34:48] And so you looked at it and so there was data that these researchers had collected I believe I want to say was either science or nature, it just was just published. But they didn't have the sensational title. [00:34:59] It was like the media. And so they had looked at demographics, I believe, between black and white women. [00:35:09] Right. And they showed that there was a discrepancy in the outcomes. Right. And so and it was tied to ethnicity, tied to race. [00:35:19] The piece that the researchers did actually went through the whole analysis. [00:35:24] But of course, I mean, the journals, they are problematic across the board, right. Say. [00:35:31] And so this is a problem. Right. And so there is this thing about, oh, I it has all these problems were doing it on historical data. And the outcomes aren't even based on gender or ethnicity or age. [00:35:45] But I'm always saying is like, yes, we need to do better. Right. We need to do better. It is our duty to do better. [00:35:54] But the worst A.I. is still better than us, like. Like you take the best of us and we're still worse than the worst A.I., at least in terms of these things. And that's actually not discussed. Right. And so I think and that's why the sensational title. Right. And it's so it's like so then you can have individuals go like, oh, we don't need to use this. I'm like, oh, no, no, no, no. [00:36:13] I want the A.I. instead of the the the doctors that provided that data because it's still better than that. [00:36:20] Yes, right. I think it's really important to linger on the idea that this A.I. is racist. It's like. [00:36:28] Well, compared to what sort of the the I think we set unfortunately way too high of a bar for AI algorithms. And in the ethical space where perfect is, I would argue, probably impossible then if we set the bar of perfection essentially of a has to be perfectly fair, whatever that means is it means we're setting it up for failure. But that's really important to say what you just said, which is, well, it's still better. [00:37:02] And one of the things I, I think that we don't get enough credit for just in terms of as developers, is that you can now poke at it. Right. So it's harder to say, you know, is this hospital is the city doing something right until someone brings in a civil case? Right. [00:37:21] Well, were they I can process through all this data and say, hey, yes, there there is an issue here, but here it is. We've identified it. And then the next step is to fix it. I mean, that's a nice feedback loop versus like waiting for someone to sue someone else before it's fixed. Right. [00:37:39] And so I think that power we need to capitalize on a little bit more. [00:37:44] Right. Instead of having the sensational titles have the OK, this is a problem and this is how we're fixing it and people are putting money to fix it because we can make it better. I look at like facial recognition, how joy. She basically called out a couple of companies and said, hey, and most of them were like, oh, embarrassment. [00:38:07] And the next time it had been fixed. [00:38:10] Right. It had been fixed better. Right. And then it was like, oh, here's some more issues. And I think that conversation then moves that needle to having much more fair and unbiased and ethical aspects. As long as both sides, the developers are willing to say, OK, I hear you, yes, we are going to improve. And you have other developers like, you know, hey, I it's wrong, but I love it, right? [00:38:36] Yes. So speaking of the really nice notion that I is maybe flawed but better than humans, so it's made me think of it. One example of flawed humans is our political system. Do you think or you said judicial as well? [00:38:56] Do you have a hope for a sort of. Being elected for president or running our Congress or being able to be a powerful representative of the people, so I mentioned and I truly believe that this whole world of A.I. is in partnerships with people. [00:39:18] And so what does that mean? [00:39:19] I don't believe or maybe I just don't I don't believe that we should have an eye for president. But I do believe that a president should use AI as an adviser. Right. Like, if you think about it, every president has a cabinet of individuals that have different expertise that they should listen to. [00:39:43] Right. Like, that's kind of what we do. And you put smart people with smart expertise around certain issues. And you listen, I don't see why I can't function as one of those smart individuals giving input. So maybe there is an eye on health care, maybe there's an eye on education and. Right. Like all these things that a human is processing. Right. [00:40:06] Because at the end of the day, there's people that are human that are going to be at the end of the decision. And I don't think as a world, as a culture, as a society, that we would totally and this is us like this is some fallacy about us, but we need to see that leader, that person as human. [00:40:29] And most people don't realize that, like leaders have a whole lot of advice. Right. Like when they say something is not that they woke up. [00:40:36] Well, usually they don't wake up in the morning and be like, I have a brilliant idea. Right. It's usually a OK, let me listen. I have a brilliant idea, but let me get a little bit of feedback on this. Like, OK, and then it's a yeah, that was an awesome idea or was like, yeah, let me go back where he talked to a bunch of them. [00:40:54] But are there some possible solutions to the bias that's present in our algorithms piano we just talked about? [00:41:03] So I think there's two paths. One is to figure out how to systematically do the feedback and corrections. [00:41:13] So right now, it's ad hoc, right? It's a researcher. Identify some outcomes that are not don't seem to be fair. [00:41:22] Right. They publish it, they write about it. And they either the developer or the companies that have adopted the algorithms may try to fix it. Right. And so it's really ad hoc and it's not systematic. There's it's just it's kind of like I'm a researcher. That seems like an interesting problem, which means that there is a whole lot out there that's not being looked at. [00:41:45] Right. Because it's kind of researcher driven. I and I don't necessarily have a solution, but that process, I think, could be done a little bit better. One way is I'm going to poke a little bit at some of the corporations. [00:42:05] Right. Like maybe the corporations when they think about a product they should instead of in addition to hiring these, you know, bug, they give these. [00:42:16] Oh, yeah, yeah, yeah. Well, you like awards when you find a bug. Yeah. Yes. Bug. [00:42:22] Yeah. You know, let's let's put it like we will give the whatever the award is that we give for the people who find these security holes, find an ethics hole. [00:42:30] Right. Like finding unfairness and we will pay you X for each one you find. I mean, why can't they do that one? It's a win win. [00:42:38] They show that they're concerned about it, that this is important and they don't have to necessarily dedicated their own, like internal resources. And it also means that everyone who has like their own bias lens, like I am interested in age. And so I'll find the ones based on age and I'm interested in gender and. Right. Which means that you get like all of these different perspectives, but you think of it in a data driven way. [00:43:00] So like sort of if we look at a company like Twitter, it gets it's under a lot of fire for discriminating against certain political beliefs. Correct. And sort of there's a lot of people this is the sad thing, because I know how hard the problem is and I know the Twitter folks are working really hard at it. Even Facebook that everyone seems to hate are working really hard at this. [00:43:24] You know, the kind of evidence that people bring is basically anecdotal evidence or me or my friend always said is X. And for that we got banned. And and that's kind of a discussion of saying, well, look, that's usually first of all, the whole thing is taken out of context. So they're they present sort of anecdotal evidence. And how are you supposed to, as a company in a healthy way, have a discourse about what is and isn't ethical? [00:43:52] What how do we make algorithms ethical when people are just blowing everything like they're outraged about? [00:44:01] Particular anecdotal evidence, piece of evidence that's very difficult to sort of contextualize and the big data driven way to give a hope for companies like Twitter and Facebook. [00:44:13] So I think there's a couple of things going on right. First off, the remember this whole aspect of we are becoming reliant on technology. We're also becoming reliant on a lot of these the apps and the resources that are provided. [00:44:35] So some of it is kind of anger like I need you right now and you're not working for me. [00:44:41] Right. But I think is. [00:44:43] And so some of it and I wish that there was a little bit of change of rethinking. So some of it is like, oh, we'll fix it in house. [00:44:52] No, that's like, OK, I'm a fox and I'm going to watch these hands because I think it's a problem that foxes eat hens, you know. [00:45:01] Right. Like use like be good citizens and say, look, we have a problem and we are willing to open ourselves up for others to come in and look at it and not try to fix it in house, because if you fix it in house, there's conflict of interest. If I find something, I'm probably going to want to fix it and hopefully the media won't pick it up. Right. [00:45:24] And that then caused this distrust because someone inside is going to be mad at you and go out and talk about how, yeah, they can resume a survey because it lets people just say, look, we have this issue community, help us fix it and we will give you, like, you know, the bug finder fee. [00:45:44] If you do, you have a hope that the community, us as a human civilization on the whole, is good and can be trusted to guide the future of our civilization into a positive direction? [00:45:58] I think so. So I'm an optimist, right. And, you know, there were some dark times in history always. I think now we're in one of those dark times. [00:46:10] I truly do. In which aspect? [00:46:11] The polarization. And it's not just us. Right. So if it was just us, I'd be like a.. A U.S. thing. But we're seeing it like worldwide, this polarization. [00:46:21] And so I worry about that. But I do fundamentally believe that at the end of the day, people are good, right? And why do I say that? Because any time there's a scenario where people are in danger and I will use so Atlanta, we had Snowmageddon and people can laugh about that people at the time. [00:46:45] So the city closed for, you know, little snow, but it was ice and the city closed down. But you had people opening up their homes and saying, hey, you have no where to go. Come to my house. [00:46:55] Right. Hotels were just saying, like sleep on the floor, like places like, you know, the grocery stores were like, hey, here's food. There was no like, oh, how much are you going to pay me? It was like this such a community. And like people who didn't know each other, strangers were just like, can I give you a ride home? And that was the point. I was like, you know what? [00:47:15] Like that that that reveals that the deeper thing is, is there's a compassion and love that we all have within us. It's just that when all that is taken care of and Guibord, we love drama. [00:47:28] Yeah. And that's, I think almost like the division is a sign of the times being good is that it's just entertaining and some unpleasant mammalian level to watch, to disagree with others. [00:47:43] And Twitter and Facebook are actually taking advantage of that in a sense, because it brings you back to the platform and their advertiser driven. So they make a lot of money. [00:47:54] So you go back and it's like love doesn't sell quite as well. In terms of advertisement, uh, it doesn't. [00:48:02] So you've started your career at NASA's Jet Propulsion Laboratory. But before I ask a few questions there, have you happen to have ever seen Space Odyssey 2001, A Space Odyssey? [00:48:14] Yes. OK, do you think do you think HAL 9000. [00:48:18] So we're talking about ethics. [00:48:20] Do you think how did the right thing by taking the priority of the mission over the lives of the astronauts. [00:48:27] Do you think Hal is good or evil? Easy questions. Yeah. How was misguided? You're one of the people that would be in charge of it now like hell yes. [00:48:43] So how would you do better if you think about what happened was there was no failsafe, right? So we perfection, right? [00:48:54] Like, what is that? I'm going to make something that I think is perfect. But if my assumptions are wrong, it'll be perfect based on the wrong assumptions. Right. That's something that you don't know until you deploy. And then you're like, oh, yeah, I messed up. [00:49:12] But what that means is that when we design software such as in Space Odyssey, when we put things out, that there has to be a failsafe. There has to be the ability that once it's out there, you know, we can grade it as an F. And it fails and it doesn't continue. [00:49:29] Right. There's some way that it can be brought in and removed. [00:49:34] And that's aspect because that's what happened with what, Hal? It was like assumptions were wrong. It was perfectly correct based on those assumptions. And there was no way to change change. It changed the assumptions at all and the change the fallback would be to human. [00:49:54] So you ultimately think like humans should be. [00:49:59] You know, it's not turtles or A.I. all the way down. It's at some point there's a human that actually still think that. [00:50:06] And again, because I'd human robot interaction, I still think the human needs to be part of the equation at some point. So what? [00:50:14] Just looking back, what are some fascinating things in robotics space that NASA was working at the time or just in general, what what have you gotten to play with and what are your memories from working at NASA? [00:50:27] Yeah, so one of my first memories. Was they were working on a surgical robot system that could do eye surgery. Right. And this was back in oh my gosh, it must have been, oh, maybe 92, 93, 94. [00:50:47] So it's almost like a remote operation. Yeah, it was it was a remote operation. [00:50:51] In fact, you can even find some old tech reports on it. So think of it. You know, like now we have DaVinci, right? Like think of it. But these were like the late 90s. Right. And I remember going into the lab one day and I was like, what's that? Right. [00:51:08] And of course, it wasn't pretty right because the technology but it was like functional. And you had this this individual that could use a version of Haptics to actually do the surgery. And they had this mock up of a human face and like the eyeballs and you can see this little drill. [00:51:25] And I was like, oh, that is so that one I vividly remember because it was so outside of my, like, possible thoughts of what could be done, the kind of precision and I mean, what was the most amazing of a thing like that? [00:51:43] I think it was the precision. [00:51:45] It was kind of first time that I had physically seen this robot machine human interface. Right. Versus because you manufacturing it have been you saw those kind of big robots. Right. [00:52:01] But this was like, oh, this is. And a person there's a person and a robot like in the same space, the meeting them in person. Like for me it was a magical moment that I can't as life transforming that I recently met Spot many from Boston Dynamics. Oh, I don't know why, but on the human robot interaction, for some reason I realized how easy it is to anthropomorphize. And it was I don't know, it was it was almost like falling in love, this feeling of meeting. [00:52:32] And I've obviously seen these robots a lot and video ensemble meeting in person. Just having that one on one time it's different is different. So have you had a robot like that in your life that was made you maybe fall in love with robotics? Sort of like meeting in person? I mean, I mean, I I loved robotics from the beginning, yeah, so I was a 12 year old, like I'm a be a roboticist actually was I called it cybernetics. [00:52:58] But so my my motivation was Bionic Woman. I don't know if you know that. And so, I mean, that was like a seminal moment. But I did meet like that was TV, right. [00:53:09] Like it wasn't like I was in the same space and I man, I was like, oh my gosh, you're like real just lingering on Bionic Woman, which by the way, because I read that about you, I watched a bit of it. And it's just so it's terrible. It's cheesy. [00:53:24] She's got it now. I've seen a couple of reruns lately, but it's, uh. [00:53:30] But of course, at the time, it's probably captured the imagination, especially when you're younger. Just catch your breath. Which aspect did you think of it? You mentioned cybernetics. Did you think of it as robotics or did you think of it as almost constructing artificial beings? Like, is it the intelligent part that that captured your fascination or was it the whole thing, like even just the limbs? [00:53:56] And just so for me, it would have in another world, I probably would have been more of a biomedical engineer, because what fascinated me was the bionic was the parts like the bionic parts, the limbs, those aspects of it. [00:54:12] Are you especially drawn to humanoid or human like robots? [00:54:16] I would say human like not humanoid, right. And when I say human, like, I think it's this aspect of that interaction, whether it's social and it's like a dog. Right. Like that's human. [00:54:29] Like because they understand us that interacts with us at that very social level to, you know, humanoids are part of that, but only if they interact with us as if we are human. [00:54:45] But just to linger on NASA for a little bit, what do you think? Maybe if you have other memories, but also what do you think is the future of robots in space? We mentioned how, but there's incredible robots and NASA's working on internal thinking about an hour as we venture out of human civilization ventures, out into space. What do you think the future of robots is there? [00:55:09] Yeah, so, I mean, those are the near term. For example, they just announced the the rover that's going to the moon, which, you know, that's kind of exciting. [00:55:20] But that's like near term. [00:55:23] You know, my favorite, favorite, favorite series is Star Trek. Right. [00:55:30] You know, I really hope and even Star Trek, like, if I calculate the years, I wouldn't be alive, but I would really, really love to be in that world. [00:55:43] Like, even if it's just at the beginning, like, you know, like a voyage, like adventure one. [00:55:50] So basically living in space. Yeah. With what robots, what robots data, what role the data would have to be, even though that wasn't, you know, that was like later. [00:56:01] But so data is a robot that has human like qualities. Right, without the emotion chip. Yeah. You don't like emotion. [00:56:09] Well, data with the emotion chip was kind of a mess, right. [00:56:15] It took a while for for that then to adapt. [00:56:21] But and so why was that an issue? The issue is, is that. Emotions make us irrational agents. That's the problem. And yet he could think through things, even if it was based on an emotional scenario, right. Based on pros and cons, but as soon as you made him emotional, one of the metrics he used for evaluation was his own emotions, not people around him. Right. And so we do that as children. [00:56:55] Right. So we're very egocentric. We are very egocentric. And so it's not just an early version of the emotion chip then. I haven't watched much Star Trek. [00:57:05] I except I have also met adults. Right. And so that is that is a developmental process. And I'm sure there's a bunch of psychologists that could go through, like you can have a six year old adult who has the emotional maturity of a 10 year old. Right. And so there is various phases that people should go through in order to evolve, and sometimes you don't. [00:57:28] So how much psychology do you think a topic that's rarely mentioned in robotics, but how much does psychology come to play when you're talking about a human robot interaction, when you have to have robots that actually interact with tons? [00:57:43] So we like my group as well as I read a lot in the cognitive science literature as well as the psychology literature, because they understand a lot about human human relations and developmental milestones and things like that. [00:58:03] And so we tend to look to see what what's been done out there. [00:58:10] Sometimes what we'll do is we'll try to match that to see is that human human relationship the same as human robot? Sometimes it is and sometimes is different. [00:58:20] And then when it's different, we have to we try to figure out, OK, why is it different in this scenario? But it's the same in the other scenario. Right. [00:58:29] And so we try to do that quite a bit. [00:58:32] We just see that for looking at the future of human robot interaction. We just see the psychology piece is the hardest. [00:58:39] Like, if it's I mean, it's a funny notion for you, as I don't know if you consider. Yeah. I mean, one would ask, do you consider yourself a roboticist or psychologist? [00:58:49] I consider myself a roboticist that plays the act of a psychologist. [00:58:53] But if you were look at yourself sort of, you know, 20, 30 years from now, do you see yourself more and more wearing the psychology hat? [00:59:04] Sort of another way to put it, as are the hard problems and human robot interaction is fundamentally psychology or is it still robotics, the perception, manipulation, planning and all that kind of stuff? [00:59:16] It's actually neither. The hardest part is the adaptation in the interaction. [00:59:23] So learning it's it's the interface is the learning. [00:59:26] And so if I think of like I've become much more of a roboticist, a person than when I like originally when I was about the bionics, I was a I was electrical engineer. I was control theory. [00:59:40] Right. Like and then I started realizing that my algorithms needed, like, human data. Right. And so that I was like, OK, what does this human thing, how do I incorporate human data? [00:59:51] And then I realized that human perception had that there was a lot in terms of how we perceive the world. And so trying to figure out how do I model human perception for my. [01:00:01] And so I became a person, human robot interaction person from being a control theory and realizing that humans actually offered quite a bit. [01:00:12] And then when you do that, you become more of an artificial intelligence AI. And so I see myself evolving more in this A.I. world under the lens of robotics, having hardware, interacting with people. So you're a world class expert, researcher in robotics and yet others, you know, there's a few is it's a small but fierce community of people. But most of them don't take the journey into the age of HRR, into the human. [01:00:46] So why did you break into the interaction with humans? It seems like a really hard problem. [01:00:54] It's a hard problem and it's very risky. As an academic. [01:00:56] Yes. And I I knew that when I started down that journey, that it was very risky as an academic in this world that was nuance. [01:01:09] It was just developing. [01:01:10] We didn't even have a conference right at the time because it was the interesting problems. That was what drove me. It was the fact that I looked at what interests me in terms of the application space and the problems, and that pushed me into trying to figure out what people were and what humans were and how to adapt to them. If those problems weren't so interesting, I'd probably still be sending rovers to glaciers. [01:01:42] Right. But the problems were interesting. And the other thing was that they were hard. Right. [01:01:47] So it's I like having to go into a room and being like, I don't know what to do. [01:01:54] And then going back and saying, OK, I'm going to figure this out. I do not I'm not driven. When I go, I'm like, oh, there are no surprises. Like, I don't find that satisfying. If that was the case, I go someplace and make a lot more money. Right. I think I stay an academic because and choose to do this because I can go into a room like that's hard. [01:02:15] Yeah, I think just from my perspective, maybe you can correct me on it, but if I just look at the feel the way I broadly, it seems that human robot interaction has the most one of the most number of open problems like people, especially relative to how many people are willing to acknowledge that there are this because most people are just afraid of the human so they don't even acknowledge how many open problems are. [01:02:45] But this in terms of difficult problems to solve exciting spaces, it seems to be an incredible for that. [01:02:52] It is. And it's exciting. [01:02:55] You mentioned trust before. What role does trust from interacting with autopilot to in the medical context, what role does trust play in the human robot interaction? [01:03:08] So some of the things I study in this domain is not just trust, but it really is over trust. [01:03:14] How do you think about over trust? What is first of all, what is what is trust and what is overdress? [01:03:20] Basically, the way I look at it is trust is not what you click on a survey trust. This is about your behavior. So if you interact with the technology. Based on the decision, are the actions of that technology as if you trust that decision, then you're trusting? Right. And I mean, even in my group, we've done surveys that, you know, on the thing. Do you trust robots? Of course not. [01:03:46] Would you follow this robot in a burning building? Of course not. Right. And then you look at their actions and you're like, clearly your behavior does not match what you think, right. Or what you think you would like to think. Right. [01:03:59] And so I'm really concerned about the behavior, because that's really at the end of the day, when you're in the world, that's what will impact others around you, is not whether before you went onto the street, you clicked on like, I don't trust self-driving cars. [01:04:12] You know, that from an outsider perspective, it's always frustrating to me when I read a lot, some insider and certain philosophical sense. [01:04:22] The it's frustrating to me how often trust is used in surveys and how people say make claims of any kind of finding. They make somebody clicking an answer. You just trust is your bad behavior. [01:04:40] Just you said a beautiful I mean, the action your own behavior is is what trust is. I mean that everything else is not even close. It's almost like absurd comedic poetry that you weave around your actual behavior. [01:04:55] So some people can say they're they their trust. You know, I trust my wife, husband or not whatever. But the actions is what speaks volumes. Bug their car. [01:05:08] Probably don't trust them. I trust them. I'm just making sure. No, no, that's yeah. It's like even if you think about cars, I think it's a beautiful case. I came here at some point, I'm sure on either Uber left, right. [01:05:20] I remember when it first came out. I bet if they had had a survey, would you get in the car with a stranger and pay them? [01:05:28] Yes. [01:05:30] How many people do you think would have said, like, really, you know, even worse, would you get in the car with a stranger at 1:00 a.m. in the morning to have them drop you home as a single female? Yeah, like how many people would say that's stupid? [01:05:46] Yeah. And now look at where we are. [01:05:48] I mean, people put kids like. Right. Lights. Oh, yeah. My my child has to go to school and I yeah. I'm going to put my kid in this car with a stranger. [01:05:58] Yeah. I mean it's just fascinating how like what we think we think is not necessarily matching our behavior and certainly with robots, with autonomous vehicles and all the kinds of robots you work with, that's that's. [01:06:15] Yeah, it's the way you answer it, especially if you've never interacted with that robot before and if you haven't had the experience of being able to respond correctly on a service is impossible. [01:06:27] What do you what role does trust play in the interaction, do you think? [01:06:31] I guess a good to is a good to trust a robot. [01:06:36] What is over trust mean was it is a good kind of how you feel about autopilot currently, which is like from a roboticist perspective, it's like, oh, you're so very cautious. Yeah. [01:06:48] So this is still an open area of research. But basically what I would like in a perfect world is that people trust the technology when is working 100 percent and people will be hypersensitive and identify when it's not. But of course we're not there. That's that's the ideal world. And but we find is that people swink, right, they tend to swing, which means that if my first and like we have some papers like first impressions, then everything is everything. [01:07:22] Right? If my first instance with technology, with robotics is positive, it mitigates any risk. [01:07:29] It it correlates with, like best outcomes. It means that I'm more likely to either not see it when it makes the mistakes or faults or I'm more likely to forgive it. [01:07:44] Mm hmm. [01:07:45] And so this is a problem because technology's not 100 percent accurate, right? It's not 90 percent accurate, although it may be perfect. [01:07:52] How do you get the first moment right? Do you think there's also an education about the capabilities and limitations of the system? Do you have a sense of how do you educate people correctly in that first interaction? [01:08:04] Again, this is this is an open ended problem. So one of the study that actually has given me some hope that I was trying to figure out how to put it in robotics. So there was a research study that it showed for medical E-Systems giving information to radiologists about, you know, here you need to look at these areas on on on the x ray. What they found was that when the system provided one choice, there was this aspect of either no trust or over trust. [01:08:43] Right. Like, I'm not going I don't believe it at all. [01:08:47] Or a yes, yes, yes, yes. And they would miss things right. Instead, when the system gave them multiple choices, like here are the three, even if it knew, like, you know, it had estimated that the top areas you need to look at was he, you know, some place on on the X-ray, if it gave like one plus others, the trust was maintained and the accuracy of the entire population increased. [01:09:20] Right. So basically, it was a you're still trusting the system, but you're also putting in a little bit of like your human expertise, like you're a human decision processing into the equation. So it helps to mitigate that overthrust risk. Yeah. [01:09:36] So there's a fascinating balance to strike. You haven't figured out. [01:09:39] Again, it's still exciting. Open area research. Exactly. So what are some exciting applications of human robot interaction? You started a company. [01:09:48] Maybe you can talk about the the exciting efforts there. But in general, also, what other space can robots interact with humans and help? [01:09:58] Yeah. So besides health care, because, you know, that's my bias lens, my other biased lenses, education. [01:10:04] I think that well, one which we definitely we in the U.S., you know, we're doing OK with teachers, but there's a lot of school districts that don't have enough teachers. If you think about the teacher student ratio for at least public education, in some districts, it's crazy. It's like, how can you have learning in that classroom? Right. [01:10:27] Because you just don't have the human capital. And so if you think about robotics bringing that into classrooms as well as the after school space where they offset some of this lack of resources in certain communities, I think that's a good place. And then turning on the other end is using these systems then for workforce retraining and dealing with some of the things that are going to come out later on of job loss, like thinking about robots and energy systems for retraining and workforce development. [01:11:05] I think that's exciting areas that can be pushed even more and it would have a huge, huge impact. [01:11:13] What would you say? Some of the open problems in education? Sort of. [01:11:19] It's exciting for young kids and the older folks or folks of all ages who need to be retrained, who need to sort of open themselves up to a whole another area of work or what what are the problems to be solved there? [01:11:37] How do you think robots can help? [01:11:39] We we have the engagement aspect, right. So we can figure out the engagement. [01:11:43] That's not what do you mean by engagement? So identifying whether a person is focused is like that. [01:11:54] We can figure out. What we can figure out and and there's some positive results in this, is that personalized adaptation based on any concepts, right? So imagine I think about I have an agent and I'm working with a a kid learning, I don't know, algebra two. [01:12:18] Can that same agent then switch and teach some type of new coding skill to a displaced mechanic? Like what does that actually look like? [01:12:30] Right. Like hardware might be the same. Content is different to different target demographics of engagement. Like, how do you do that? [01:12:41] How important do you think personalization is in human robot interaction and not just a mechanic or student, but like literally to the individual human being? [01:12:52] I think personalization is really important, but a caveat is that. I think we'd be OK if we can personalize to the group, right? [01:13:01] And so if I can label you as along some certain dimensions, then even though it may not be you specifically, I can put you in this group. So the sample size, this is how they best learn. This is how they best engage. [01:13:20] Even at that level, it's really important and it's because I mean, it's one of the reasons why educating in large classrooms is so hard, right? You teach to, you know, the median, but there's these, you know, individuals that are, you know, struggling. And then you have highly intelligent individuals. And those are the ones that are usually, you know, kind of left out. So highly intelligent. [01:13:44] Individuals may be disruptive and those who are struggling might be disruptive because they're both bored. [01:13:50] And if you narrow the definition of the group or the size of the group enough, you'll be able to address their individual individual needs. But really across the group most important group needs. Right. Right. [01:14:03] And that's kind of what a lot of successful recommender systems do, Spotify and so on. So sad to believe. [01:14:09] But as a music listener, probably some sort of large group is very, very sadly predictable, have been labeled, I've been labeled and successfully so because they're able to recommend stuff. [01:14:21] Yeah, but applying that to education, education, there's no reason why it can't be done. Do you have a hope for our education system? [01:14:30] I have more hope for workforce development and that's because I'm seeing investments. Even if you look at VC investments in education, the majority of it has lately been going to workforce retraining. Right. And so I think that government investments is increasing. There's like a claim and some of it's based on fear, like AIG is going to come and take over all these jobs. [01:14:55] What are we going to do with all these nonpaying taxes that aren't coming to us by our citizens? And so I think I'm more hopeful for that. Not so hopeful for early education, because it's this it's still a who's going to pay for it. And you won't see the results for like 16 to 18 years. [01:15:20] It's hard for people to wrap their heads around that. But on the retraining part, what are your thoughts? There's a candidate, Andrew Yang, running for president and saying that sort of AI automation robots and universal basic income, universal basic income in order to support us as we kind of automation takes people's jobs and allows us to explore and find other means like, um. [01:15:49] Concern of a society transforming effects of automation and robots and so on. [01:15:57] I do I do know that A.I. robotics will displace workers like we do know that, but there'll be other workers that will be defined new jobs. What I worry about is that's not what I worry about. [01:16:14] Like, will all the jobs go away? What I worry about is the type of jobs that will come out, like people who graduate from Georgia Tech will be OK. [01:16:23] Right. [01:16:23] We give them the skills they will adopt even if their current job goes away. I do worry about those that don't have that quality of an education. Right. Will they have the ability, the background to adapt to those new jobs that I don't know that I worry about, which will create even more polarization in our society internationally and everywhere? [01:16:48] I worry about that. I also worry about not having equal access to all these wonderful things that I can do and robotics can do. [01:16:58] I worry about that? [01:17:00] You know, people like people like me from Georgia Tech, from Samedi will be OK. Right. But that's such a small part of the population that we need to think much more globally of having access to the beautiful things, whether it's in health care and education, iron and politics. [01:17:21] Right. I worry about that. [01:17:23] And that's part of the thing that you're talking about as people that build the technology had to be thinking about ethics, have to be thinking about access and all those things, and not just a small, small subset. Let me ask some philosophical, slightly romantic questions. All right. So listen to this. [01:17:42] Here he goes again. [01:17:43] OK, do you think do you think one day we'll build in our system that we, a person can fall in love with and it would love them back like in a movie her, for example. Oh, yeah. [01:17:57] Although she she kind of didn't fall in love with him or she fell in love with like a million other people, something like that. [01:18:03] So you're the jealous type. I see. So we humans are the jealous. Yes. [01:18:08] So I do believe that we can design systems where people would fall in love with their robot, with their A.I. partner. [01:18:20] That I do believe, because it's actually and I don't I don't like to use the word manipulate, but as we see, there are certain individuals that can be manipulated if you understand the cognitive science about it. [01:18:33] Right. Right. So, I mean, if you could think of all close relationship and love in general as a kind of mutual manipulation that dance, the human dance, I mean, manipulation is a negative connotation. [01:18:47] And I don't like to use that word particularly. [01:18:50] I guess another way to phrase is you're getting at is it could be algorithm ATI's or something. It could be the relationship building part CAMBIA. [01:18:57] I mean, just think about it there. We have and I don't use dating sites, but from what I heard. There are some individuals that have been dating that have never saw each other, right. In fact, there's a show, I think, that tries to weed out fake people, like there's a show that comes out right. [01:19:16] Because, like, people start faking, like, what's the difference of that person on the other end, being an agent. Right. And having a communication. Are you building a relationship remotely like there's no reason why that can't happen in terms of human robot interaction? [01:19:34] So what role you've kind of mentioned would data emotion being can be problematic if not implemented? Well, I suppose what role does emotion, some other human like things, the imperfect things come into play here for good human robot interaction and something like love? [01:19:54] Yeah. So in this case and you had asked, can I agent love a human back? I think they can emulate love back. Right. And so what does that actually mean? It just means that if you think about their programming, they might put the other person's needs in front of theirs in certain situations. You look at think about it as a return on investment, like was my return on investment as part of that equation, that person's happiness, you know, has some type of algorithm waiting to it. [01:20:25] And the reason why is because I care about them. [01:20:28] That's the only reason. Right. But if I care about them and I show that, then my final objective function is length of time of the engagement. Right. [01:20:37] So you can think of how to do this actually quite easily. [01:20:41] And so but that's not love. Well, so that's the thing. It I think it emulates love because we don't have a classical definition of love. [01:20:55] Right. But and we don't have the ability to look into each other's minds, to see the algorithm. [01:21:02] And I mean, I guess what I'm getting at is, is it possible that especially if that's learned, especially if there's some mystery and blackbox nature to the system, how is that? [01:21:14] You know, how is it any different, how is any different in terms of sort of if the system says I'm conscious, I'm afraid of death, and it does indicate that it loves you? Another way to sort of phrase, I'd be curious to see what you think. Do you think there will be a time when robots should have rights? [01:21:37] You've kind of phrase the robot in a very roboticist way and just a really good way of saying, OK, well, there's an objective function. [01:21:45] And I could see how you can create a compelling human robot interaction experience that makes you believe that the robot cares for your needs and even something like loves you. [01:21:56] But what if the robot says, please don't turn me off? What if the robot starts making you feel like there's an entity of being a soul there? Right. Do you think there will be a future? [01:22:10] Hopefully you won't laugh too much at this, but the words they do ask for rights. So I can see a future if we don't address it in the near term where these agents, as they adapt and learn, could say, hey, this should be something that's fundamental. [01:22:33] I hopefully think that we would address it before it gets to that point. [01:22:37] Do you think so that you think there's a bad future? Is a what? Is that a negative thing where they ask we're being discriminated against. [01:22:44] I guess it depends on what role have they attained at that point, right. [01:22:51] And so if I think about now, careful what you say, because the robots 50 years from now, I'll be listening to this and you'll be on TV saying this is what roboticists used to believe. [01:23:01] I right. And so this is my and as I said, I have a bias lens in my robot. Friends will understand that. [01:23:09] But so if you think about it and I actually put this in kind of the as a roboticists, you don't necessarily think of robots as human with human rights, but you could think of them either in the category of property or you can think of them in the category of animals. [01:23:30] Right. And so both of those have different types of of rights. So animals have their own rights as a living being. But, you know, they can't vote. They can't. Right. They they can be euthanized. But as humans, if we abuse them, we go to jail like. Right. So they do have some rights that protect them, but don't give them the rights of, like, citizenship. [01:23:57] And then if you think about property, property, the rights are associated with the person. Right. So if someone vandalizes your property or steals your property like there are some rights but is associated with the person who owns that, if you think about it back in the day and if you remember, we talked about how society has changed. [01:24:22] Women were property, right? They were not thought of as having rights. [01:24:29] They were thought of as property of like they're assaulting a woman meant assaulting the property of somebody else. [01:24:37] Exactly. And so what I envision is, is that we will establish some type of norm at some point, but that it might evolve. [01:24:46] Right. Like if you look at women's rights now, like there are still some countries that don't have and the rest of the world is like, why? [01:24:55] That makes no sense. Right. And so I do see a world where we do establish some type of grounding. It might be based on property rights and might be based on animal rights. [01:25:05] And if it evolves that way, I think we will have this conversation at that time, because that's the way our society traditionally has evolved. [01:25:17] Beautifully put. Just out of curiosity, Anchee Djibo, meaningful robotics with a robot. Curious how it works. We think robotics, we're all these amazing robotics companies led created by incredible roboticists and they all went out of business recently. [01:25:38] Why do you think they didn't last longer? Why is it so hard to run a robotics company, especially one like these, which are fundamentally HRR? Are H.R. I human robot interaction robots? [01:25:53] Yeah, each one has a story. Only one of them I don't understand. And that was Anqi. That's actually the only one I don't understand. I don't understand it either. It's there. [01:26:03] No I mean I look like from the outside, you know, I've looked at their sheets, I've looked like the data that's. Oh you mean like business wise. Yeah. [01:26:11] Gotcha. Yeah. And like I look at all, I look at that data and I'm like they seem to have like product market fit. So that's the only one I don't understand. The rest of it was product marketing. [01:26:25] What's product market fit just just out of the car. You think about it. Yeah. [01:26:29] So although we think robotics was getting there. Right. But I think it's just the timing. It just the clock just timed out. I think if they had been given a couple of more years, they would have been OK. [01:26:42] But the other ones are still fairly early by the time they got into the market. [01:26:47] And so product market fit is I have a product that I want to sell at a certain price. Are there enough people out there, the market that are willing to buy the product at that market price for me to be a functional, viable, profit bearing company? Right. [01:27:06] So product market fit, if it cost you a thousand dollars and everyone wants it and only is willing to pay a dollar, you have no product market fit, even if you could sell it for, you know, it's enough for a dollar because you can't. [01:27:21] How hard is it for robots? Sort of. Maybe if you look at iRobot, the company that makes Roomba vacuum cleaner, can you comment on did they find the right product market fit or are people willing to pay for robots? [01:27:35] It's also another kind of question about iRobot in their story. Right. Like when they first they had enough of a of a run. [01:27:44] Right, when they first started, they weren't doing vacuum cleaners, right, they were a military, they were contracts, primarily government contracts, designing robots. Yeah, I mean, that's what they were. That's how they started. Right. [01:27:58] And they still do a lot of incredible work there. [01:27:59] But, yeah, that was the initial thing that gave them the funding to then try to the vacuum cleaner is what I've been told was not like their first rendezvous in terms of designing a product. Right. And so they they were able to survive until they got to the point that they found a product price market. [01:28:22] Right. And even with if you look at the the Roomba, the price point now is different than when it was first released. Right. It was an early adopter price, but they found enough people who were willing to to fund it. And I mean, you know, I forgot what their loss profile was for the first couple of, you know, years, but they became profitable in sufficient time that they didn't have to close their doors. [01:28:45] So they found the right. There's still there's still people willing to pay a large amount of money or a thousand dollars for for vacuum cleaner. Unfortunately for them, now that they've proved everything out, figured it all out now. [01:28:58] Yeah. And so that's that's the next thing. Right. The competition. [01:29:01] And they have quite a number, even internationally, like there are some some products out there. [01:29:07] You can go to Europe and be like, oh, I didn't even know this one existed. So so this is the thing, though, like with any market. [01:29:16] I would say this is not a bad time, although, you know, as a roboticist, it's kind of depressing. But I actually think about things like with the I would say that all of the companies that are now in the top five or six, they weren't the first to the stage. Right. Like Google was not the first search engine. Sorry, AltaVista. Right. Facebook was not the first. Sorry, MySpace. Right. Like, think about it. [01:29:46] They were not the first players. [01:29:48] Those first players, like, they're not in the top five, 10 of Fortune 500 companies. Right. [01:29:56] They proved they started to prove out the market. They started to get people interested. They started the buzz, but they didn't make it to that next level. [01:30:07] But the second batch. Right. The second batch, I think, might make it to the next level. [01:30:14] When do you think the the Facebook of the Facebook of robotics? [01:30:21] Sorry, I take that phrase back because people deeply for some reason or I know why, but it's, I think, exaggerated distrust Facebook because of the privacy concerns and so on. And with robotics, one of the things you have to make sure is all the things we've talked about is to be transparent and have people deeply trust you to let a robot into their lives, into the home. [01:30:43] What do you think the second batch of robots, is it five, 10 years, 20 years that will have robots in our homes and robots in our hearts? [01:30:53] So if I think about it because I try to follow the the VXI kind of space in terms of robotic investments, and right now I don't know if they're going to be successful. I don't know if this is the second batch. [01:31:06] But there's only one batch that's focused on like the first batch, right, and then those all these self-driving Xs. Right. And so I don't know if they're a first batch of something or if, like, I don't know quite where they fit in. [01:31:20] But there is a number of companies, the co robot, I call them robots that are still getting VC investments. [01:31:29] They some of them have some of the flavor of like rethink robotics. Some of them have some of the flavor of like curry. What's a core robot? [01:31:38] So basically a robot in human working in the same space. So some of the companies are focused on manufacturing. So having a robot and human working together in a factory, some of these robots are robots and humans working in the home, working in clinics like there's different versions of these companies in terms of their products. But they're all so we think robotics would be like one of the first at least well known companies focus on this space. So I don't know if this if this is a second batch or if this is. [01:32:16] Still part of the first batch that I don't know, and then you have all these other companies in this self-driving, you know, space and I don't know if that's a first batch or, again, a second batch. Yeah. [01:32:29] So there's a lot of mystery about this now. Of course, it's hard to say that this is the second batch until it, you know, proves outright, correct? Yeah. We need a unicorn. Yeah, exactly. [01:32:40] The what do you think? People are so afraid. At least in popular culture of legged robots like those worked in Boston Dynamics or just robotics in general. If you were to psychoanalyze that fear, what do you make of it? [01:32:55] And should they be afraid so? [01:32:57] So should people be afraid? I don't think people should be afraid, but with a caveat. [01:33:02] I don't think people should be afraid, given that most of us in this world understand that we need to change something. Right. [01:33:12] So given that now, if things don't change, be very afraid. [01:33:18] What which is the dimension of change that's needed. [01:33:21] So changing a thinking about the ramifications, thinking about like the ethics, thinking about like the conversation is going on. Right. It's not is no longer a we're going to deploy it and forget that, you know, this is a car that can kill pedestrians that are walking across the street. Right. If we're not in that state where, a, we're putting these roads out, there are people out there. Yes, a car could be a weapon like people are now. [01:33:48] Solutions aren't there yet. [01:33:50] But people are thinking about this as we need to be ethically responsible as we send these systems out, robotics, medical, self-driving and military and military and military, just not as often talked about. [01:34:04] But it's really worth probably these robots will have a significant impact as well. [01:34:09] Correct. Correct, right. Making sure that they can think rationally, even having the conversations who should pull the trigger. Right. [01:34:18] But overall, you're saying if we start to think more and more as a community about these ethical issues, people should not be afraid. [01:34:24] Yeah, I don't think people should be afraid. I think that the return on investment, the the impact, positive impact will outweigh any of the potentially negative impacts. [01:34:34] Do you have worries of existential threats of robots or AI that some people kind of talk about and romanticize about in the next decade, the next few decades? [01:34:47] No, I don't. Singularity will be an example. So my concept is, is that so remember, robots A.I. is designed by people. [01:34:56] Yes, it has our values. And I always correlate this with a parent and a child. So think about it as a parent, would we want we want our kids to have a better life than us. We want them to expand. We want them to experience the world. And then as we grow older, our kids think and know they're smarter and better and more intelligent and have better opportunities. And they may even stop listening to us. Yeah, they don't go out and then kill us. [01:35:27] Right. Like, think about it is because we it's instilled in them values. We instilled in them this whole aspect of community. And yes, even though you're maybe smarter and more have more money and that all it's still about this love caring relationship. And so that's what I believe. So even if, like, you know, we've created the singularity and some archaic system back in like 1980, that suddenly evolves. The fact is, it might say I am smarter, I am sentient. [01:35:57] These humans are really stupid, but I think it'll be like, yeah, but I just can't destroy them. Yeah. [01:36:05] For sentimental value, it's still just for to come back for Thanksgiving dinner every once in a while. Exactly. This so beautifully put. If you've also said that The Matrix may be one of your more favorite A.I. related movies, can you elaborate why? [01:36:22] Yeah, it is one of my favorite movies and it's because it represents kind of all the things I think about. So there is a symbiotic relationship between robots and humans, right? [01:36:37] That's symbiotic relationship is that they don't destroy us. They enslave us. Right. But think about it. [01:36:45] Even though they enslaved us, they needed us to be happy, right, and in order to be happy, they had to create this cruelty world that they then had to live in. [01:36:53] Right. That's the whole premise. [01:36:56] But then there were humans that had a choice, right? [01:37:01] Like you had a choice to stay in this horrific, horrific world where it was your fantasy life with all of the anomalies, perfection, but not accurate. [01:37:11] Or you can choose to be on your own and like have maybe no food for a couple of days. But you were totally autonomous. And so I think of that as and that's why. So it's not necessarily us being enslaved, but I think about us having the symbiotic relationship robots. And I even if they become sentient, they're still part of our society and they will suffer just as much as we do. [01:37:37] And then there will be some kind of equilibrium that we'll have to find some sort of symbiotic relationship. [01:37:44] And then you have the ethicists, the robotics folks that would like know this has got to stop. I will take the other people in order to make a difference. [01:37:53] So if you could hang out for a day with the robot real from science fiction movies, books safely and get to pick his or her their brain, who would you pick? Not to say it's data there, I was going to say Rosy, but I don't I'm not really interested in her brain. [01:38:21] I'm interested in data, brain data pre or post emotion chip pre. But don't you think it'd be a more interesting conversation post emotion chip? [01:38:33] Yeah, it would be drama. And I you know, I'm human. I deal with drama all the time. Yeah. But the reason why I want to pick Data's brain is because I, I could have a conversation with him and ask, for example, how can we fix this ethics problem. Right. And he could go through like the rational thinking and through that he could also help me think through it as well. And so that's there's like these questions, fundamental questions, I think I can ask him that he would help me also learn from. [01:39:07] And that fascinates me. [01:39:10] I don't think there's a better place to end it. Thank you so much for talking to us. An honor. Thank you. Thank you. This is fun. [01:39:18] Thanks for listening to this conversation and thank you to our presenting sponsor cash app, download it, use Cold Legs podcast, you'll get ten dollars and ten dollars will go to First, a STEM education nonprofit that inspires hundreds of thousands of young minds to become future leaders and innovators. If you enjoy this podcast. Subscribe on YouTube. Give it five stars, an Apple podcast. Follow on Spotify, support on Patra or simply connect with me on Twitter. And now let me leave you with some words of wisdom from Arthur C. [01:39:50] Clarke. Whether we're based on carbon or on silicon makes no fundamental difference, we should be treated with appropriate respect. Thank you for listening and hope to see you next time.

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