Mar 11, 2025 | Canon lenses autofocus motors, music labels vs. Internet Archive, Ecosia prioritizes trees over profits

This is a recap of the top 10 posts on Hacker News on Mar 11, 2025.Canon EF and RF Lenses – All Autofocus Motorshttps://exclusivearchitecture.com/03-technical-articles-CLT-12-autofocus-systems.htmlhttps://news.ycombinator.com/item?id=43320230Music labels will regret coming for the Internet Archive, sound historian sayshttps://arstechnica.com/tech-policy/2025/03/music-labels-will-regret-coming-for-the-internet-archive-sound-historian-says/https://news.ycombinator.com/item?id=43322245Trees not profits: we're giving up our right to ever sell Ecosia (2018)https://blog.ecosia.org/trees-not-profits/https://news.ycombinator.com/item?id=43317887Probabilistic Artificial Intelligencehttps://arxiv.org/abs/2502.05244https://news.ycombinator.com/item?id=43318624Mathematical Foundations of Reinforcement Learninghttps://github.com/MathFoundationRL/Book-Mathematical-Foundation-of-Reinforcement-Learninghttps://news.ycombinator.com/item?id=43323946Show HN: Seven39, a social media app that is only open for 3 hours every eveninghttps://www.seven39.comhttps://news.ycombinator.com/item?id=433280953dfx: So powerful, it's kind of ridiculous (2023)https://www.abortretry.fail/p/so-powerful-its-kind-of-ridiculoushttps://news.ycombinator.com/item?id=43287327Software-Defined Radio for Engineers (2018) [pdf]https://www.analog.com/media/en/training-seminars/design-handbooks/Software-Defined-Radio-for-Engineers-2018/SDR4Engineers.pdfhttps://news.ycombinator.com/item?id=43323071What made the Irish famine so deadlyhttps://www.newyorker.com/magazine/2025/03/17/rot-padraic-x-scanlan-book-reviewhttps://news.ycombinator.com/item?id=43326275Firmware update bricks HP printers, makes them unable to use HP cartridgeshttps://arstechnica.com/gadgets/2025/03/firmware-update-bricks-hp-printers-makes-them-unable-to-use-hp-cartridges/https://news.ycombinator.com/item?id=43323923