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An Adam Ruins Everything segment on the real facts of the McDonald's hot coffee lawsuit, covering the severity of the burns and the corporate PR campaign that painted it as frivolous.

Rob Miles explains for Computerphile why simple rule sets like Asimov's Three Laws cannot make robots and AI safe. Terms like harm and human are too ambiguous to specify precisely.

An AWS re:Invent session explaining Amazon's Working Backwards process, where teams start from customer needs and write a press release and FAQ (PR-FAQ) before building. It covers the five customer questions that frame the process.

A short clip showing a person touching an active table saw blade with a finger and walking away unharmed, thanks to SawStop's system that stops the blade within milliseconds of skin contact.

PBS Space Time explains Noether's theorem: conservation laws such as energy and momentum are consequences of deeper symmetries. It also covers why those laws hold only under certain conditions.

Amazon's Jon Jenkins at Velocity 2011 on how operations can drive revenue and on Amazon's highly available, autonomous architectures. It includes details on deployment frequency and Amazon's move to AWS.

Adam Neely explains that Warner Music claimed his video, which defended their copyright in a lawsuit, over a work whose copyright they had lost. He calls it an ironic and absurd claim, and the claim was later released.

Veritasium explains how trees lift water from roots to the top of tall trunks, using transpiration pull and the negative pressure that liquid water can sustain. It explains why trees do not need pumps or valves.

Larry Lessig's TED talk argues that copyright law chokes creativity, drawing on John Philip Sousa, celestial copyrights and the ASCAP cartel to make the case for reviving remix culture.

Afroman's music video for a song about police damaging his door, built from home security footage of an officers' raid on his house.

A Fox News segment in which Ami Horowitz interviews people at UC Berkeley and in Harlem about whether voter ID laws are racist.

Louis Rossmann recounts calling NYC's Department of Consumer Affairs after his repair business was fined, only to find the agency staff could not explain what the law required. The call starts around 3:14.

A short clip of Jordan Peterson explaining Pareto distributions, using Soviet farm collectivization and the resulting famine as context. It also covers how outcomes concentrate in a few people.

Copenhagen's bicycle ambassador Mikael Colville-Andersen argues in a TEDx talk that bicycle helmets threaten bicycle culture. He says they distract from road design and make cycling look dangerous.

Flanders and Swann perform 'First and Second Law', a comic song about the laws of thermodynamics, from their 1964 stage show At the Drop of Another Hat. It sets the first and second laws to a deadpan call-and-response routine.

A short urbanism video presenting original observations of how drivers treat stop signs, to argue that cyclists rolling through them under an Idaho stop is no different. It filmed intersections in Ottawa.

A 60 Minutes segment on how German prosecutors and police go after online hate speech and insults, which are crimes there. It contrasts this with the broad First Amendment protection of online speech in the US.

Fox Business interview in which Oracle co-founder Larry Ellison claims Oracle will beat Amazon at cloud databases. He argues the world's valuable data lives in Oracle and says Amazon struggled to move off it.

A short film about the Erlang language, showing telecom systems built from lightweight processes and demonstrating hot code swapping. It is an edited version of the original Ericsson video.

A condensed film of Dick Proenneke's footage of building a cabin and living alone in the Alaskan wilderness, using hand tools and local materials. It draws on the 8mm films he shot himself.

Veritasium explains why a large share of published research findings may be false, covering p-values, p-hacking, publication bias and low replication rates. It draws on John Ioannidis's well-known paper and describes reforms such as preregistration.

Oh The Urbanity! argues that most city dwellers live in dense residential neighbourhoods outside downtown, which can be calm and peaceful. It draws on older, denser parts of Toronto and Montreal.

Tantacrul explains how he and engraver Simon Smith designed the free music notation font for MuseScore 3.6. It draws on the history of the SCORE notation application by Leland Smith.

Not Just Bikes explains how many American suburbs, built all at once rather than incrementally, cannot cover their infrastructure costs and survive on growing debt. It draws on Strong Towns' work on the growth Ponzi scheme.

An Every Frame a Painting video essay on how Akira Kurosawa used movement, weather and composition to tell stories. It draws on clips and interviews with other filmmakers.

Cardiologist James O'Keefe argues in a TEDx talk that moderate running confers the best longevity benefits, while extreme endurance training can damage the heart. He draws on data and his own experience as a lifelong runner.

Skateboarding pioneer Rodney Mullen talks about how the open skate community and its environments drive the invention of new tricks out of pure passion. He draws parallels to collaboration and open source.

Johann Hari's TED talk arguing that addiction is driven largely by disconnection and environment rather than chemical hooks alone. He draws on his personal experience with addicted relatives and on research and policy examples from around the world.

CGP Grey explains why "Indian" is often preferred over "Native American" in the United States, especially near reservations, and how many tribes exist in the US. He draws on conversations with people who identify as Indian.

Linguist Simon Roper reconstructs how a London accent would have sounded from the 14th to the 21st centuries, reading passages in period pronunciation. It draws on the Cambridge History of the English Language.

The Lock Picking Lawyer tests the supposedly unpickable lock designs built by the Stuff Made Here channel. He looks for bypasses and weaknesses in the novel anti-picking mechanisms.

Bassist Victor Wooten argues that music should be learned the way children learn their first language: by immersion and play, without early correction or rigid academic instruction. He draws on how babies pick up speech from the people around them.

Adam Neely interviews Damien Riehl and Noah Rubin about their project to generate and copyright every possible melody as MIDI. The video explains their reasoning and how it bears on music copyright lawsuits.

Musician Adam Neely examines whether certain keys sound sadder than others, looking at the history of tuning systems and temperaments and at how instrument timbre shapes the emotional character we hear. It draws on historical aesthetics writing and audio examples.

Rowan Atkinson's speech at the launch of the Reform Section 5 campaign in Parliament in 2012. He argues against criminalizing insulting words and for answering speech with more speech.

A video essay from Every Frame a Painting on animator Satoshi Kon and his editing style, which distorts and warps space and time. It draws on his four features and one TV series.

Historia Civilis explains the constitution of ancient Athens, including its assembly, offices and use of sortition to choose leaders. It draws on Aristotle and Plutarch.

Paolo fromTOKYO explains why foreign tourists get arrested in Japan, covering strict laws and the justice system's very high conviction rate.

CGP Grey explains how the 2015 UK general election showed the flaws of first-past-the-post voting, with parties like UKIP winning many votes but few seats.

Phil Vischer of VeggieTales and Holy Post gives an 18-minute history of racial injustice in America, covering why anger persists despite civil rights laws. It is told from an evangelical Christian perspective and adapted from a class he co-taught.