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CGP Grey walks through the odd history and quirks of the US-Canada border, including how it was surveyed and its irregularities such as exclaves.

Sabine Hossenfelder explains superdeterminism as an interpretation of quantum mechanics, addressing common objections and misconceptions, including the worry that it kills free will or science. She ties it to Bell's theorem and hidden variables.

WonderWhy surveys complex international borders, including enclaves like Vatican City, San Marino and Lesotho, the enclave-within-enclave town of Baarle, and the India-Bangladesh Cooch Behar region.

The official 1994 music video for Soundgarden's Black Hole Sun.

Malte Skarupke's C++Now 2018 talk on hash table performance, explaining why std::unordered_map is slow and memory hungry and presenting faster designs, including his bytell hash map.

A short 2007 demo of Pizza Party, a command line program that orders Domino's pizza from a UNIX-like terminal. The video shows the designers placing an order using the software.

A short clip of Bernie Sanders in conversation with Ezra Klein of Vox, where he rejects open borders as a proposal that serves the Koch brothers. It is an excerpt from a longer interview on global poverty.

An animated 44-minute summary of Ray Dalio's book Principles for Dealing with the Changing World Order. It lays out the Big Cycle of rising and declining nations, covering debt cycles, internal conflict, and shifts in global power over the past 500 years.

A Vox Borders episode with Johnny Harris explaining how China is gradually erasing the line between mainland China and Hong Kong since the 1997 handover. It describes the one country, two systems arrangement and its expiration date.

A three-minute clip from The Wire season 3 in which Stringer Bell chairs a drug-crew business meeting using Robert's Rules of Order. The scene plays the formal procedure against the criminal setting.

Al Jazeera's full unedited version of the WikiLeaks 'Collateral Murder' footage from a US military helicopter cockpit, showing a 2007 Baghdad attack that killed about a dozen people, including two Reuters journalists.

A short clip from an ACM and Computer History Museum interview in which Leslie Lamport discusses writing his paper on time, clocks and the ordering of events. He explains its link to special relativity.

The WikiLeaks release of 2007 Apache helicopter gunsight footage from Baghdad, in which a crew kills several people including two Reuters journalists. A van arriving to help the wounded is also fired on.

Dave Ackley demonstrates the Demon Horde Sort, an inherently robust sorting machine running in his Movable Feast Machine simulator. This is the uncut version with all details and side thoughts.

Simon Peyton Jones presents linear types for Haskell, showing how practical linearity can fit into a higher-order polymorphic language. The talk covers motivations such as resource handling and relates the ideas to Rust.

A Black Hat USA 2017 briefing by the prosecutors who caught Russian carder Roman Seleznev. It covers the electronic evidence collected, the international trail, and how he was located and arrested.

Nassim Nicholas Taleb talks at Google about his book Antifragile, on systems that gain from disorder and volatility. It draws on themes from his earlier books.

The official music video for Daft Punk's Harder, Better, Faster, Stronger, taken from Discovery. It is a chapter of the anime film Interstella 5000 supervised by Leiji Matsumoto.

A local news report about a woman who ordered a pizza on a 911 call to discreetly signal domestic violence and give her address to the dispatcher. The coverage includes the actual dispatcher call.

An Onion News Network parody of a 'hyper-realistic' modern warfare game whose gameplay consists of paperwork, waiting for orders and repairing trucks.

The first episode of Michael Sandel's Harvard course on moral reasoning, opening with the trolley problem and the choice between killing one to save five. Sandel draws out student arguments and introduces utilitarian and other approaches to justice.

Tom7 (suckerpinch) builds and evaluates a series of absurd hard drives, including storage made from ping packets across the internet. The video accompanies his paper and mixes deep technical hacking with comedic storytelling.

3Blue1Brown walks through a very hard Putnam competition problem and its elegant solution, emphasizing the visual intuition and the thought process behind solving it.

A Golden Balls episode in which one contestant announces he will steal, leading to an unexpected outcome in the split-or-steal prisoner's dilemma.

Practical Engineering explains why connecting solar and other inverter-based generation to the grid is hard. It covers grid stability, load balancing and the behind-the-scenes engineering challenges of renewables.

AlphaPhoenix uses Monte Carlo simulation and annealing-style methods to draw North Carolina congressional district maps, both gerrymandered and fair. He focuses on the fascinating computational problem rather than the politics.

A PyCon 2012 talk by Kurt Grandis on building an automated water-squirting turret that uses Python and computer vision to detect and drive off squirrels from a bird feeder.

Destin Sandlin of Smarter Every Day documents boarding a US Navy nuclear submarine in the Arctic during the ICEX 2020 under-ice exercise. It is the first of a series on life aboard a fast attack submarine.

Nathan Kutz presents the spatio-temporal dynamics of rotating detonation rocket engines, including combustion fronts that behave like solitons. He shows a bifurcation analysis of a multiscale model that captures the main features.

A short clip of George H. W. Bush and Ronald Reagan answering an audience question on illegal immigration at a 1980 Republican primary debate. Both take notably sympathetic positions, including on schooling for undocumented children.

Kurzgesagt explains why, even with science-fiction technology, most of the universe is permanently out of reach because of cosmic expansion and finite resources.

A recording of the leaked 2014 phone call between US diplomat Victoria Nuland and ambassador Geoffrey Pyatt about the future of Ukraine's government, republished by The Tribune.

WikiLeaks' release of cockpit footage from a 2007 US Apache helicopter attack in Baghdad that killed a group of men including two Reuters staff, and then a van that came to help the wounded. The video includes the crew's radio chatter and context on the military's initial account.

A Chappelle's Show sketch in which drug dealer Tron Carter and a white businessman face the justice system in very different ways.

A leaked 2014 phone call between US Assistant Secretary of State Victoria Nuland and Ambassador Geoffrey Pyatt discussing a political transition in Ukraine. It includes a crude remark about the European Union.

A one-minute clip of Osho making a remark about people, posted with a long description explaining who he is. It is mostly a meme clip.

A condensed rendition of a project that re-uploaded one video to YouTube 1000 times, showing the accumulating compression artifacts. It pays homage to Alvin Lucier's I Am Sitting in a Room.

Bloomberg shows Ross McNutt demonstrating his wide-area aerial surveillance system, following a shooting and the getaway car and piecing together a crime network.

Fedor Pikus's CppCon 2017 talk on C++ atomics, looking at what they let the programmer express and what the hardware actually does. It covers memory ordering and lock-free programming from basic to advanced.

DIY Perks builds a realistic artificial sun for dark winters, using a powerful water-cooled LED, a satellite dish reflector for near-parallel rays, and a scattering layer to mimic the blue sky. The video explains the optics behind why most lamps do not look like sunlight and shows the build and its results.