https://hackertube.pageYouTube videos Hacker News started recommending recently and has already recommended more than once.enhttps://hackertube.page/watch/040ejWnFkj0https://hackertube.page/watch/040ejWnFkj0Frequently recommended in autonomous vehicle and Waymo threads as the main counterargument, a long but worthwhile video essay on how self-driving cars could affect cities. Not Just Bikes argues that self-driving cars will worsen sprawl and car dependence and harm cities. The video compares car-centered and people-centered urban design and weighs what cities should do instead. Recommended by 17 HN users in 12 months, 2024–2026.https://hackertube.page/watch/wjZofJX0v4Mhttps://hackertube.page/watch/wjZofJX0v4MHN treats it as the go-to visual introduction to transformers, and many say it finally made attention and embeddings click. 3Blue1Brown's visual explanation of how transformers and GPT-style language models work, tracing data through tokens, embeddings and attention. Recommended by 13 HN users in 10 months, 2024–2026.https://hackertube.page/watch/7xTGNNLPyMIhttps://hackertube.page/watch/7xTGNNLPyMIHN's most frequent recommendation for a clear, approachable foundation in how LLMs work without heavy math. Andrej Karpathy's three-hour-plus general-audience deep dive into how ChatGPT-style LLMs are built, covering the full training stack from pretraining to post-training. It also gives mental models for their quirks, like hallucination, and how to use them well. Recommended by 10 HN users in 8 months, 2025–2026.https://hackertube.page/watch/wo84LFzx5nIhttps://hackertube.page/watch/wo84LFzx5nIHN commenters recommend it for its source-based history of OOP, though some dispute its account of Alan Kay. Casey Muratori's two-hour talk tracing the history of object-oriented programming back to the 1960s and examining how its ideas, and later entity component systems, came about. It is followed by a Q&A. Recommended by 11 HN users in 8 months, 2025–2026.https://hackertube.page/watch/AF8d72mA41Mhttps://hackertube.page/watch/AF8d72mA41MHN recommends it as a gripping story of single-minded persistence against the herd, and as the back story behind modern LED lighting. Veritasium tells the story of how Shuji Nakamura and others made the blue LED, long thought nearly impossible. It covers the materials challenge of gallium nitride and the persistence it took. Recommended by 10 HN users in 7 months, 2024–2026.https://hackertube.page/watch/7ttG90raCNohttps://hackertube.page/watch/7ttG90raCNoStrongly recommended whenever HN discusses CGI, practical effects, or trusting behind-the-scenes footage. VFX supervisor Jonas Ussing examines what studios mean by "no CGI", showing how much invisible CGI hides behind practical-effects marketing. It is the first part of a multi-part series that includes analysis of doctored behind-the-scenes footage. Recommended by 6 HN users in 6 months, 2024–2026.https://hackertube.page/watch/xt1KNDmOYqAhttps://hackertube.page/watch/xt1KNDmOYqAHN commenters in memory management and language design threads cite it as the best explanation of group lifetimes versus per-object ownership. Casey Muratori argues against smart pointers and RAII, advocating grouped-element thinking, zero-is-initialization and stubs as better ways to structure memory and handle errors. Recommended by 6 HN users in 6 months, 2024–2026.https://hackertube.page/watch/0xS68sl2D70https://hackertube.page/watch/0xS68sl2D70Recommended as a balanced take on AI and education, with the point that learning takes work that no technology can do for you. Veritasium's Derek Muller gives a Perimeter Institute livestream on how AI might change teaching and learning. He draws on past technology shifts and cognitive science to argue that learning requires effortful repetition. Recommended by 6 HN users in 6 months, 2025–2026.https://hackertube.page/watch/2AXv49dDQJwhttps://hackertube.page/watch/2AXv49dDQJwPraised as the clearest visual explanation of transmission lines, impedance and signal propagation, with several commenters saying it made it all click. AlphaPhoenix uses a custom high-speed measurement setup to watch voltage waves travel down wires and split at a fork. It answers how electricity knows where to go and how quickly that process happens. Recommended by 5 HN users in 5 months, 2024–2026.https://hackertube.page/watch/3ZTGwcHQfLYhttps://hackertube.page/watch/3ZTGwcHQfLYHN cites it constantly in US manufacturing debates as a vivid demonstration of how much domestic industrial capability has been lost. 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. Recommended by 6 HN users in 6 months, 2025–2026.https://hackertube.page/watch/KtQ9nt2ZeGMhttps://hackertube.page/watch/KtQ9nt2ZeGMHN repeatedly recommends it as an up-to-date, fact-focused case for solar and batteries that readers can cite on land use and costs. A long Technology Connections video arguing that public understanding of renewable energy is distorted. It covers solar economics, land use compared with ethanol corn, and battery myths such as cobalt. Recommended by 12 HN users in 5 months, 2026–2026.https://hackertube.page/watch/NdppYYfQJgghttps://hackertube.page/watch/NdppYYfQJggHN users recommend it as an excellent, accessible overview of how modern chips are produced and why EUV matters. A 38C3 talk on how advanced chips are made, centered on EUV lithography and the global supply chain behind it. It covers technical challenges from raw materials to finished chips and the geopolitical weight of semiconductors. Recommended by 5 HN users in 5 months, 2025–2026.https://hackertube.page/watch/JxBg4sMusIghttps://hackertube.page/watch/JxBg4sMusIgHN commenters call it an internet classic that makes you a more proficient Excel user, and note it is still relevant despite predating newer functions like XLOOKUP. A reupload of Joel Spolsky's talk teaching spreadsheet users the Excel features they are probably missing, such as keyboard navigation, named ranges, tables and lookups. The original disappeared and this copy comes from the Wayback Machine. Recommended by 7 HN users in 6 months, 2024–2026.https://hackertube.page/watch/T0CpOYZZZW4https://hackertube.page/watch/T0CpOYZZZW4HN people strongly recommend it as the best overview of the Galactic Starcruiser and a case study in misaligned incentives and poor guest experience, engaging despite its length. Jenny Nicholson's roughly four-hour review of her two-night stay on Disney's Star Wars Galactic Starcruiser immersive hotel. She goes through the experience, its story and production, and why it failed. Recommended by 4 HN users in 4 months, 2024–2026.https://hackertube.page/watch/pLPpl2ISKTghttps://hackertube.page/watch/pLPpl2ISKTgOffered as an accessible, well-made explainer to share in threads on scam texts, crypto fraud and scam compounds. A Last Week Tonight segment on pig butchering scams, in which long-con romance and investment fraud is run, often by trafficked workers. It explains how victims are groomed and interviews people who lost large sums. Recommended by 5 HN users in 5 months, 2024–2025.https://hackertube.page/watch/7G4ipM2qjfwhttps://hackertube.page/watch/7G4ipM2qjfwHN people link it as the go-to explainer for grid and inverter stability, especially in threads about blackouts and distributed solar. 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. Recommended by 4 HN users in 5 months, 2024–2025.https://hackertube.page/watch/jHP942Livy0https://hackertube.page/watch/jHP942Livy0HN people recommend it as the definitive, thorough guide to getting dishwashers to clean properly and often send it to friends. Technology Connections explains how dishwashers work and how to use them well, including detergent use, the prewash cycle and why pre-rinsing hurts. It follows his earlier dishwasher videos. Recommended by 6 HN users in 5 months, 2024–2026.https://hackertube.page/watch/zduSFxRajkEhttps://hackertube.page/watch/zduSFxRajkERecommended as the best deep dive on tokenizers, worth the two hours for anyone working with LLMs. Andrej Karpathy builds the GPT tokenizer from scratch, implementing byte pair encoding along with encode and decode. He shows how many odd LLM behaviors trace back to tokenization, and covers Unicode byte encodings along the way. Recommended by 5 HN users in 5 months, 2024–2025.https://hackertube.page/watch/IroPQ150F6chttps://hackertube.page/watch/IroPQ150F6cHN cites it as one of the best talks on data-oriented design, applying struct-of-arrays and compact data layouts to a real compiler. Andrew Kelley, creator of Zig, presents practical data-oriented design techniques for shrinking memory footprint and making programs cache friendly. He ends with a case study of how these ideas sped up the Zig compiler. Recommended by 4 HN users in 5 months, 2024–2026.https://hackertube.page/watch/Y5K9HBiJpukhttps://hackertube.page/watch/Y5K9HBiJpukHN recommends it as a detailed, pilot's-eye summary of the whole MH370 story and the case for searching again. Mentour Pilot's 56-minute account of the MH370 disappearance and what is now known, including the WSPR radio tracking technique and other sensing methods. It was made ahead of renewed search efforts. Recommended by 5 HN users in 4 months, 2024–2025.https://hackertube.page/watch/YpuX-5E7xoUhttps://hackertube.page/watch/YpuX-5E7xoUHN people cite it in threads on vehicle size and safety as a clear explanation tying grille height to deaths. FortNine looks at the data on why newer pickup trucks with tall, blunt grilles kill so many pedestrians, cyclists and motorcyclists. It argues that lowering hood height would substantially cut fatalities. Recommended by 5 HN users in 5 months, 2024–2026.https://hackertube.page/watch/eMlx5fFNoYchttps://hackertube.page/watch/eMlx5fFNoYcHN treats it as the go-to visual explanation of attention, recommended to people who find text-based transformer explainers hard to follow. 3Blue1Brown's visual walkthrough of the attention mechanism inside transformers, covering self-attention, multiple heads and cross-attention. It is chapter 6 of his deep learning series. Recommended by 5 HN users in 4 months, 2024–2026.https://hackertube.page/watch/15_-hgsX2V0https://hackertube.page/watch/15_-hgsX2V0HN commenters call it a model demo video and the quickest way to see how much one developer packed into a self-hosted file server. The author of copyparty introduces the FOSS file server he has built over five years, demoing its features such as resumable uploads, WebDAV and deduplication. The video itself is shown running on a demo server. Recommended by 7 HN users in 3 months, 2025–2026.https://hackertube.page/watch/1K5oDtVAYzkhttps://hackertube.page/watch/1K5oDtVAYzkHN recommends it whenever zip codes, addresses or geospatial data come up, as a clear explanation of the hidden pattern in post codes. CGP Grey explains that postal codes are routing instructions for mail rather than geographic regions. He looks at the quirks and problems this causes. Recommended by 4 HN users in 4 months, 2025–2025.https://hackertube.page/watch/Sx0J7dIlL7chttps://hackertube.page/watch/Sx0J7dIlL7cHN commenters recommend it as a data-driven explanation of the 2024 election and voter trends. Ezra Klein interviews Democratic pollster David Shor, who walks through survey data and charts explaining the 2024 election results. They discuss voter shifts, the education divide and what Democrats got wrong. Recommended by 4 HN users in 4 months, 2025–2026.https://hackertube.page/watch/bY2FlayomlEhttps://hackertube.page/watch/bY2FlayomlEPointed to as the in-depth talk on exception mechanics and code size for embedded C++. Khalil Estell's CppCon 2024 talk argues C++ exceptions can reduce binary size in firmware. He digs into how exceptions work and how to shrink their code footprint on embedded platforms. Recommended by 5 HN users in 4 months, 2025–2026.https://hackertube.page/watch/-Ln-8QM8KhQhttps://hackertube.page/watch/-Ln-8QM8KhQHN points to it as the clearest frontend explanation of why McMaster-Carr feels so snappy, often contrasted with slow modern UIs. Wes Bos breaks down the techniques behind the McMaster-Carr website's speed: server-rendered HTML, prefetching, CDN and service worker caching, preloading, critical CSS and fixed-size images. He also notes its old-school jQuery and YUI JavaScript. Recommended by 4 HN users in 4 months, 2024–2025.https://hackertube.page/watch/B2482h_TNwghttps://hackertube.page/watch/B2482h_TNwgHN sends people here as the most straightforward and detailed starting point for understanding EUV lithography. Branch Education's animated deep dive into ASML's EUV photolithography machine and how it prints nanometer-scale transistors onto chips. It covers the system's components and the process of chip manufacturing. Recommended by 3 HN users in 3 months, 2025–2026.https://hackertube.page/watch/HPqGaIMVuLshttps://hackertube.page/watch/HPqGaIMVuLsHN recommends it as the original explainer for a clever dithering technique and the go-to video in dithering threads. Rune Skovbo Johansen explains Surface-Stable Fractal Dithering, a technique he invented and released as open source. It makes dithering stick to 3D surfaces and covers the experiments and shortcomings along the way, inspired by Return of the Obra Dinn. Recommended by 3 HN users in 4 months, 2025–2026.https://hackertube.page/watch/KBcxuM-qXechttps://hackertube.page/watch/KBcxuM-qXecHN links it whenever the Moon's orbit comes up, as a concise explanation of why the Moon always curves toward the Sun. A minutephysics explainer showing that the Moon's path around the Sun is not a spiral but closer to a 12-sided polygon with curved corners. It argues the Moon arguably orbits the Sun rather than the Earth. Recommended by 4 HN users in 4 months, 2024–2026.https://hackertube.page/watch/YCjNT9qGjh4https://hackertube.page/watch/YCjNT9qGjh4HN recommends it as an excellent inside look at Valve's history, its technology and the games industry of the time. Valve's two-hour documentary for Half-Life 2's 20th anniversary, with team members discussing development, nearly running out of money, being hacked, the publisher lawsuit and the birth of Steam. Recommended by 3 HN users in 3 months, 2024–2025.https://hackertube.page/watch/c8iFtaltX-shttps://hackertube.page/watch/c8iFtaltX-sHN recommends it as a fascinating, mind-expanding interview on bioelectricity and non-reductionist biology. Curt Jaimungal interviews biologist Michael Levin of Tufts about consciousness, bioelectricity, emergence, and cancer research. The conversation challenges reductionist views of life. Recommended by 3 HN users in 3 months, 2025–2026.https://hackertube.page/watch/pagPuiuA9cYhttps://hackertube.page/watch/pagPuiuA9cYRecommended by commenters who say its practical, scientific explanations finally taught them how and why sharpening works. A beginner-focused tutorial on freehand knife sharpening with a single stone, aiming for a shaving-sharp edge in about five minutes. Recommended by 3 HN users in 3 months, 2025–2026.https://hackertube.page/watch/t_yh_S31R9ghttps://hackertube.page/watch/t_yh_S31R9gHN users recommend MangoJelly's thorough tutorials as the best way to learn FreeCAD properly, since trial and error doesn't work. The introduction to MangoJelly's beginner course for FreeCAD 1.0. The course teaches solid modeling with the Part Design, Sketcher and Part workbenches. Recommended by 3 HN users in 3 months, 2025–2025.https://hackertube.page/watch/-cEn_83zRFwhttps://hackertube.page/watch/-cEn_83zRFwHN commenters point to it as a primer on modern Rails and as a rebuttal to cloud 'learned helplessness', worth watching even by non-Ruby developers. DHH's opening keynote at Rails World 2024 in Toronto, where Rails 8 beta shipped. It covers built-in authentication, Propshaft, Solid Cache, Solid Queue, Solid Cable, Kamal 2 and Thruster, pitching the One Person Framework that needs no PaaS. Recommended by 6 HN users in 3 months, 2024–2025.https://hackertube.page/watch/01oeaBb85Xchttps://hackertube.page/watch/01oeaBb85XcHN people recommend it for a first-hand view of how Tor holds up in practice, from someone who had to rely on it. A DEF CON 30 talk by Sam Bent, a former darknet vendor, on operational security when using Tor and the darknet. He applies the hacker mindset to staying anonymous and avoiding capture. Recommended by 3 HN users in 3 months, 2024–2024.https://hackertube.page/watch/6OPsH8PK7xMhttps://hackertube.page/watch/6OPsH8PK7xMRecommended as an intuitive, animated explanation of P vs NP framed around reversing computation. Polylog explains how algorithms can be turned into circuits and encoded as satisfiability problems, which lets you effectively run them backwards. It uses this to motivate breaking RSA, general reductions to SAT, and what P vs NP is really asking. Recommended by 4 HN users in 3 months, 2024–2026.https://hackertube.page/watch/EmKQsSDlaa4https://hackertube.page/watch/EmKQsSDlaa4HN commenters call it the best explanation of how holograms work, and one says it transformed their understanding. 3Blue1Brown explains how holograms record a 3D scene on 2D film, using wave diffraction and phase. The video includes demonstrations of several real holograms. Recommended by 3 HN users in 3 months, 2024–2025.https://hackertube.page/watch/I6xwMIUPHsshttps://hackertube.page/watch/I6xwMIUPHssRecommended as a well-made documentary explaining Nortel's rise and the index-fund and bubble dynamics around it. BobbyBroccoli documentary on the rise of Nortel Networks, once the dominant Canadian telecom giant, during the dot-com era. It is part one of a two-part story. Recommended by 3 HN users in 3 months, 2024–2026.https://hackertube.page/watch/IkdziSLYzHwhttps://hackertube.page/watch/IkdziSLYzHwHN readers recommend it as an intuitive explanation of neural networks that shifts how people think about AI and language. Geoffrey Hinton's 2025 Royal Institution Discourse on what AI has learned from biological intelligence and how it might surpass it. He explains neural networks and argues that human language use resembles what backpropagation-trained networks do. Recommended by 3 HN users in 3 months, 2025–2025.