luis von ahn

Luis von Ahn, creator of CAPTCHA and reCAPTCHA, explains how small contributions from many people online can digitize books. He then introduces Duolingo as a way to translate the web while people learn languages.

Luis von Ahn, creator of CAPTCHA and reCAPTCHA, presents Duolingo at TEDxCMU 2011. The idea is to have millions of people translate the web for free while learning a language, an example of human computation.

A 2006 Google TechTalk in which Luis von Ahn introduces human computation, using people's effort to solve problems like image recognition that computers cannot yet handle. It covers games with a purpose and related ideas such as CAPTCHAs.

Kurt Vonnegut's 2004 Case College lecture, with Spanish subtitles, in which he sketches the shapes of stories on a blackboard. He plots story arcs as good and bad fortune against time.

A short lecture in which Kurt Vonnegut graphs the simple shapes of stories, such as Man in Hole and Boy Gets Girl. He sketches how fortune rises and falls over a narrative.

David Kriesel's 36C3 talk, in an English translation, analyzes a year of scraped Deutsche Bahn data covering every stop of every long-distance train in Germany. It explores delays and how punctuality is actually measured.

Daniel Kahneman's Talks at Google lecture on his book Thinking, Fast and Slow, covering System 1 and System 2 thinking and the psychology of judgment and decision making.

Tom Lehrer's satirical song about Wernher von Braun, the German rocket scientist who went from the Nazi missile program to the US space program. It includes the famous line about not caring where the rockets come down.

David Kriesel's 36C3 talk, in German, analyzes a year of scraped data on every stop of every long-distance train in Germany. It shows how Deutsche Bahn delay statistics hide cancellations and delays.

Professor Jeff Dahn lectures on why lithium-ion batteries die and how chemistry changes could make them last decades.

In this TED talk, Nobel laureate Daniel Kahneman distinguishes the experiencing self from the remembering self, using examples such as vacations and colonoscopies. He explains how the two perceive happiness differently and what that means for economics, policy and self-awareness.

Tom Lehrer performs his satirical song about rocket scientist Wernher von Braun, with an introduction. It is a two-minute musical clip.

Tom Lehrer performs his satirical song about rocket scientist Wernher von Braun, with an introduction, in a short clip posted for the Apollo 11 anniversary. It lampoons von Braun's moral flexibility.

Stuart Armstrong of the Future of Humanity Institute gives an Oxford physics talk on what exploratory engineering suggests about the Fermi paradox. He argues that von Neumann probes and Dyson spheres are plausibly buildable and asks what traces advanced civilizations would leave.

A side-by-side edit lining up footage of the Wuppertal Schwebebahn suspended monorail filmed in 1902 and in 2015. It lets you compare how the buildings and surroundings changed over 113 years.

A short clip in which Carl Icahn tells the story of his first activist investment and of firing 12 floors of people, arguing activism need not be short term.

The official music video for Despacito by Luis Fonsi featuring Daddy Yankee, a Latin pop hit that became the most viewed video in YouTube history.

The six Norton Lectures Jorge Luis Borges gave in 1967-68, titled This Craft of Verse, on topics including the riddle of poetry, metaphor, storytelling, translation and a poet's creed. The recording runs over four hours.

A live KEXP warm-up set by the Delvon Lamarr Organ Trio, recorded at Upstream Music Fest in 2017. The set includes Move On Up and Memphis.

Neural-network upscaled, 60 fps, stabilized and colorized version of 1902 footage of the Wuppertal Schwebebahn suspended railway in Germany. The source film comes from MoMA. It gives a vivid view of an early-1900s city and a train system that still runs.

A Veritasium explainer on how the brain works and how we learn. It is inspired by Kahneman's Thinking, Fast and Slow and covers System 1 and System 2 thinking and why harder learning builds skill.

An excerpt of the 2005 Harvard debate in which Steven Pinker gives his prepared case on biological sex differences and the under-representation of women in science. It covers cross-cultural patterns in preferences and abilities and the overlap between male and female distributions.

Revolution OS is a feature-length documentary on the history of free software and Linux. It covers Stallman and the GNU project, Torvalds and the kernel, and Raymond and Perens on open source, starting from the era of freely shared hobbyist code.

An excerpt of a C-SPAN interview in which Thomas Sowell argues that preferential admission policies produce mismatch, dropouts and resentment.

A SpaceX concept animation showing the planned fully reusable Falcon 9, with both first and second stages performing vertical landings.

A short clip from Woody Allen's 1973 film Sleeper in which a man who wakes up in the future is told that health foods are unhealthy and tobacco is good for you.

A short tour of a UK materials recycling facility showing how mixed recyclables are mechanically and optically sorted. Aluminum, ferrous metal, glass, paper, and trash come out as separate streams.

A very short clip of George Carlin's bit on idiots and maniacs, about the other drivers on the road.

A short clip from Star Trek IV in which Scotty tries to talk to a 20th-century computer, picks up the mouse and says 'Hello, computer'.

Veritasium examines which experts have real expertise, drawing on chess research and work by Klein and Kahneman. It explains that expertise comes from pattern recognition built through deliberate practice in valid, feedback-rich environments.

Comedian Rob Paravonian's 'Pachelbel Rant', a comedy bit showing that the chord progression of Pachelbel's Canon underlies countless pop songs. This is a high-quality 2019 re-post of the 2006 original.

Comedian and cellist Rob Paravonian rants about having to play Pachelbel's Canon in D, and shows how many pop songs reuse its chord progression. It was recorded live at Penn State.

3Blue1Brown presents Bayes' theorem through a geometric diagram, showing how evidence should update beliefs. It works through the Kahneman and Tversky style questions and base rates.

Adam Conover argues that billionaire philanthropy is harmful, using examples like Patagonia's Yvon Chouinard. He says we should stop accepting the myths about benevolent billionaires.

Episode 7 of the Inside Koenigsegg series, where Christian von Koenigsegg demonstrates the camless Free Valve engine technology. It discusses how such innovation could affect the wider auto industry.

Pro Magic player Luis Scott-Vargas triggers a mandatory-action infinite loop on Magic Online, and the game stalls in a non-terminating state.

A 1987 talk in which John Backus, creator of Fortran, presents function-level programming and the FL language, a successor to his FP work. It is an archival recording with links to the related paper.

Martin von Zweigbergk presents Jujutsu (jj), a Git-compatible VCS with undo, anonymous branches, first-class conflicts, automatic rebasing, and the working copy as a commit. He also covers plans at Google.