zero-knowledge

OK Go's music video for Upside Down & Inside Out, filmed during parabolic flights so the band and performers are weightless in the plane.

A short excerpt from a 1973 Yorkshire TV film in which Richard Feynman explains that knowing the name of something is not the same as knowing it.

A two-minute clip in which Milton Friedman uses a humble pencil to show how thousands of strangers across many countries cooperate, without central direction, to make a simple product. It is a short visual version of the 'I, Pencil' essay's argument about free markets and dispersed knowledge.

A short Not Just Bikes video on continuous sidewalks in the Netherlands, where the sidewalk runs unbroken across side streets so cars must visibly cross pedestrian space. It places them within Dutch sustainable safety and Vision Zero efforts.

A short clip of the Sprint anti-ballistic missile, which was launched from a silo and reached Mach 10 within seconds. Its nose and skin glow white hot from aerodynamic heating.

A two-minute clip of Andreas Antonopoulos explaining why a 51% attack on Bitcoin would not destroy it and what such an attack would cost. It is a succinct take on mining security.

A satirical 'honest' government ad from The Juice Media about Australia's 2018 Assistance and Access anti-encryption bill. It lays out in blunt terms what the law would let authorities do.

A two-minute animated introduction to Bitcoin from 2011, explaining it as a peer-to-peer digital currency. It was widely shared in Bitcoin's early days as the standard newcomer explainer.

Tom Scott visits Cloudflare's San Francisco office to show the wall of lava lamps whose camera feed is used as a source of entropy for random number generation. It is a short explainer on how this helps secure internet encryption.

A short 1966 propaganda interview clip in which Jeremiah Denton, a US prisoner of war in Vietnam, blinks the word TORTURE in Morse code. Naval Intelligence later decoded the message.

A clip of Australian Prime Minister Malcolm Turnbull saying the laws of Australia prevail over the laws of mathematics, regarding encryption. The audio is quiet in the second half.

A short 2013 video in which Roger Ver says Mt. Gox's withdrawal delays are not caused by a lack of liquidity. Mt. Gox collapsed months later, and the description carries a later update and apology.

A one-minute joke video titled as a warning against buying Bitcoin, giving a humorous summary of price crashes. It has no description.

A short clip from a 1973 NOVA episode in which Richard Feynman recalls his father teaching him that knowing the name of a bird in many languages tells you nothing about the bird.

A one-minute clip from Richard Feynman's 1979 Auckland lecture in which he answers whether you see an object or only its light. It is a short, playful take on perception and on the use of philosophy.

A short clip from The Matrix in which Agent Smith tells Morpheus that humans behave like a virus. It is shared as a standalone monologue.

A short clip from Anthony Bourdain's Parts Unknown in which he and chef Sean Brock end a long night of drinking at a Charleston Waffle House. It celebrates the unpretentious, welcoming late-night diner. Bourdain's remark comparing the meal favorably to the French Laundry is what people remember.

A two-minute clip of Richard Feynman explaining why he considers much of social science pseudoscience. He stresses how easy it is to fool yourself and how much care real knowledge takes.

A one-minute clip from Monty Python's Life of Brian in which revolutionaries grudgingly list everything the Romans have done for them, from roads to clean water. It is a satirical sketch about refusing to credit a disliked group.

A short demo of Automaton 2000 Micro, a StarCraft bot built in Blizzard's World Editor that splits marines perfectly against banelings. It shows inhuman unit micromanagement with zero losses.

A four-minute extract from the documentary The Fog of War in which Robert McNamara discusses the Gulf of Tonkin incident. He acknowledges that the second reported attack did not happen.

A CNN clip from February 2002 of Donald Rumsfeld explaining the idea of known knowns, known unknowns, and unknown unknowns at a press briefing.

A two-minute 1981 interview clip in which Richard Feynman answers an artist friend who claims science takes the beauty out of a flower. Feynman argues that understanding adds to beauty and mystery.

A zero-length alternate-link copy of the Rick Astley 'Never Gonna Give You Up' rickroll, made to avoid ads.