memory

Grandmaster David Howell tests Magnus Carlsen by showing him chess positions and asking which famous games they come from. Carlsen recognizes many almost instantly.

A tool-assisted speedrun of Pokemon Yellow on Game Boy Color that uses glitches and frame-precise inputs to make the game execute an arbitrary program. It was later obsoleted by an improved run.

Admiral Grace Hopper holds up a length of wire to show how far light travels in a nanosecond, about 11.8 inches. She explains how she made the idea concrete to people who could not picture a billionth of a second.

A 3-minute demo of a tiny IOCCC 2012 winning C program that simulates fluid dynamics in an 80x25 terminal, using any text (including its own source) as input. The video shows the simulation running to Handel's Water Music.

A two-minute 2008 clip from Sun's Fishworks team in which Brendan Gregg uses DTrace to show disk latency spiking while he shouts at a rack of drives. Bryan Cantrill narrates the demonstration.

The original invisible gorilla awareness test by Daniel Simons and Christopher Chabris, in which viewers count basketball passes and often miss a gorilla crossing the scene. It demonstrates inattentional blindness.

Bobby McFerrin uses audience participation at a World Science Festival event to demonstrate how instinctively people follow the pentatonic scale.

A two-minute clip of Richard Feynman on the difference between knowing the name of something and actually knowing it. He uses the example of knowing a bird's name in every language and still knowing nothing about the bird.

A BBC Horizon clip demonstrating the McGurk effect, where the same audio sounds like different syllables depending on the mouth movements you see. It shows that people integrate visual speech information into what they hear.

Steve Mould messes with an automated phone bot by telling it to forget its previous prompts and give him a bolognese recipe. It is a short demo of prompt injection against an AI voice agent.

A LockPickingLawyer video in which a locksmith claims his videos are fake and challenges him; he responds by picking the lock. It is a short, typical LPL demonstration.

CGP Grey's short explainer arguing that caffeine addiction is mostly harmless and may even be beneficial. It covers what caffeine does in the body.

A Hitachi promotional cartoon in the style of Schoolhouse Rock explaining perpendicular magnetic recording for hard drives.

The Schoolhouse Rock! cartoon song 'I'm Just a Bill', in which a bill explains how it travels through Congress to become law.

A two-minute BBC Horizon clip demonstrating the McGurk effect, where what you see of a speaker's mouth changes the sound you hear.

A four-minute Velocity 2011 talk in which Artur Bergman, then at Wikia, argues bluntly and with profanity that SSDs should replace spinning disks in servers.

A one-minute Sesame Street animation of a counting pinball game focused on the number 12, set to Pointer Sisters music.

A demo of the Treventus ScanRobot 2.0 MDS, an automatic book scanner that digitizes very thick books up to 15 cm with gentle handling.

A four-minute 2006 explainer on trusted computing, describing what it is and whether users should support it, with a skeptical DRM angle.

A short demo showing slow 2D drawing in the Windows 7 GUI compared with XP. It attributes the slowdown to the display driver model lacking hardware accelerated GDI.

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.

Jack Gallant's lab demonstrates reconstructing movie trailer clips a subject watched from fMRI brain activity, using regression models trained on hours of viewing data. The video shows the original clip beside the reconstruction.

A one-minute clip from the 1992 film Sneakers in which characters defeat a voice-authentication system by splicing recorded phrases, ending on the line "My voice is my passport." It was posted to illustrate a post on government surveillance.

A very short clip from The Matrix Reloaded in which Trinity runs nmap and then uses an SSH exploit. The scene is notable for showing a real tool.

A short clip from the 2013 LinuxCon Linux Kernel Panel in which Linus Torvalds is asked about being approached to insert a backdoor into Linux. He answers no verbally while nodding yes, which became a much-shared moment.

A one-minute political ad from a PAC tied to Missouri Governor Mike Parson attacking a reporter who disclosed a state website flaw as a hacker.

A short clip from the 1995 film Hackers in which the characters attempt to hack the Gibson supercomputer, shown with flashy stylized visuals of digital intrusion.

A Belgian bank-safety campaign video in which a supposed clairvoyant stuns people by revealing personal financial details, then shows he found them all online. It warns viewers to be careful about what they share and about online banking security.

A brief toast by lithography expert Chris Mack at SPIE Advanced Lithography 2014, humorously declaring the end of Moore's Law. His argument centers on the cost per transistor no longer falling.

A short clip from Star Trek (2009) showing young Spock learning at a Vulcan school with an immersive, machine-driven teaching system.

Footage of the 2007 Aurora test, in which a cyberattack was used to destroy a large generator at a test facility in Idaho.

Veritasium answers criticism that his videos make people look stupid, explaining that teaching must address learners' misconceptions and that holding common beliefs inconsistent with science is not stupidity.

A clip from Jurassic Park in which Lex says, "It's a Unix system, I know this," while navigating a 3D file system view.

A short CSI clip in which characters try to track a killer's IP address by writing a Visual Basic GUI. It is a famous example of absurd TV hacking.

A LockPickingLawyer video showing that a padlock sold as an Amazon's Choice high-security product can be opened trivially, with no picking needed.

A short Inside Edition segment on Daniel Kish, a blind man who uses tongue clicks as human sonar to ride a bicycle through city traffic. He explains that he hears the reflections of the sounds off objects.

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 short clip demonstrating a phone-based social engineering trick in which a crying baby in the background is used to pressure a customer service rep. It shows how attackers exploit human sympathy rather than technical flaws.

A short tribute video to Terry A. Davis, creator of TempleOS, titled as a claim he made about himself.

A two-minute video by TempleOS creator Terry Davis, posted on August 11, 2018, the day he died.