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2:33:48ENThe First Guitar Solo Rick Beato Learned Was "Hey Joe"Guest Rick Beato · Host Lex FridmanLex Fridman talks with music educator Rick Beato about the guitarists who shaped him, how ears are trained, and whether AI can make a song worth hearing.
1:04:38ENHundreds of Miles Apart, Zuckerberg and Fridman Sat Close Enough to See the WrinklesGuest Mark Zuckerberg · Host Lex FridmanLex Fridman sat in a dark room in Austin wearing a Quest headset; Mark Zuckerberg sat in another conference room, also wearing one, and it did not feel like a video call.
2:36:21ENA Smile Is Not Happiness: Rana el Kaliouby on Emotion AI and the Empathy CrisisGuest Rana el Kaliouby · Host Lex FridmanThe Affectiva founder and Smart Eye deputy CEO talks with Lex Fridman about teaching machines to read faces, sensing drivers inside the cabin, and why she is proudest of the people her company grew.
2:04:58ENWe're Not Homo Sapiens Anymore, Grimes Says. Call Us Homo TechnoGuest Grimes · Host Lex FridmanLex Fridman rarely records after midnight. This episode is the exception: Grimes, eight hours late, on music, memes, motherhood, and why consciousness might be sacred even if humans are not.
1:28:46ENThe Speech Company That Gets Paid to Label Its Own Training DataGuest Dan Kokotov · Host Lex FridmanRev VP of engineering Dan Kokotov tells Lex Fridman why a $1.25-a-minute human transcript, a 14% machine word-error rate, and a two-sided freelancer market are the same flywheel.
1:00:11ENRosalind Picard: Clippy Never Saw You Frown, and That's the Whole ProblemGuest Rosalind Picard · Host Lex FridmanThe MIT professor who named affective computing on emotion recognition, privacy, seizure-detecting wearables, and why a device you can take off is safer than a camera you cannot see.
1:11:50ENData Is Everything: Teaching Self-Driving Cars to Understand the Human Behind the WheelHost Lex FridmanIn an MIT lecture, Lex Fridman shows how deep learning can sense pedestrians, driver posture, gaze, emotion and cognitive load, and why that matters for human-centered autonomy.
17:21ENHow Alexa Learned to Hear From Across the Room: Rohit Prasad on Far-Field Speech and IntentGuest Rohit Prasad · Host Lex FridmanAlexa's head scientist recalls the early days of the Echo, when far-field speech recognition seemed unsolvable and there were no customers to collect data from.
26:51ENA Walking Skeleton in a Beautiful Face: Ben Goertzel on What Sophia Really IsHost Lex FridmanThe former Hanson Robotics chief scientist explains how Sophia works, why she is not AGI, and why he thinks the illusion can still be put to good use.









