zero-knowledge

Part one of a 1996 BBC Modern Times documentary on the training to become a London black cab driver. It follows candidates learning the Knowledge and facing stressful repeated exams with Public Carriage Office examiners.

Dan Olson's roughly two-hour video essay critiques NFTs, cryptocurrency, and Web3, covering their technical, economic, and ideological flaws. It is heavily sourced and ends with the advice to ask whether a project needs crypto to work.

Barely Sociable presents a case that Bitcoin creator Satoshi Nakamoto is cryptographer Adam Back. It uses interview clips and circumstantial evidence, and also touches on the block size dispute.

A documentary from Swan Bitcoin exploring Bitcoin's relationship with energy, featuring Lyn Alden and others, and arguing that mining is a net positive for the environment and not wasteful.

Motherboard's 2014 visit to a secretive Bitcoin mining operation in a repurposed factory in Liaoning, China, one of six sites producing about 4,050 bitcoins a month. It shows the machines and the workers' living conditions.

Veritasium tells the story of the XZ backdoor, how a patient attacker became maintainer and nearly compromised SSH on Linux systems. It also covers free software history and how encryption in SSH works.

Destin Sandlin of Smarter Every Day tries to manufacture a grill scrubber entirely in the United States. Along the way he runs into missing supply chains, tooling and institutional manufacturing knowledge.

Kirsten Dirksen tours new Earthships, homes built from tires, bottles and cans that generate their own energy, collect water and grow food. The video covers the newer, cheaper Encounter model and its passive systems.

A five-hour documentary history of the Super Mario 64 A button challenge, which aims to beat the game with as few A presses as possible. It covers the bugs and exploits discovered over the years.