6.20.26 | Hyundai acquires Boston Dynamics, Norway nearly bans AI in elementary schools, Project Valhalla brings a decade of work to JDK 28

This is a recap of the top 10 posts on Hacker News on Jun 20, 2026.Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights(00:00) - Intro (00:19) - Hyundai buys Boston Dynamics (01:54) - Norway imposes near ban on AI in elementary school (03:16) - Project Valhalla, Explained: How a Decade of Work Arrives in JDK 28 (04:41) - There are no instances in ATProto (06:11) - The AirPods Effect (08:15) - Bobby Prince, composer for Doom, Wolfenstein 3D, and Duke Nukem 3D, has died (09:12) - How many of the 170k English words do you know? (10:02) - Court Records Should Be Free (11:22) - Ten years of ClickHouse in open source (12:39) - Zen and the Art of Machine Learning Research (13:55) - Outro Hyundai buys Boston Dynamicshttps://startupfortune.com/hyundai-takes-full-control-of-boston-dynamics-as-softbank-exits-for-325-million/https://news.ycombinator.com/item?id=48600312Norway imposes near ban on AI in elementary schoolhttps://www.reuters.com/technology/norway-imposes-near-ban-ai-elementary-school-2026-06-19/https://news.ycombinator.com/item?id=48600093Project Valhalla, Explained: How a Decade of Work Arrives in JDK 28https://www.jvm-weekly.com/p/project-valhalla-explained-how-ahttps://news.ycombinator.com/item?id=48595511There are no instances in ATProtohttps://overreacted.io/there-are-no-instances-in-atproto/https://news.ycombinator.com/item?id=48599515The AirPods Effecthttps://www.theescapenewsletter.com/p/the-airpods-effecthttps://news.ycombinator.com/item?id=48592832Bobby Prince, composer for Doom, Wolfenstein 3D, and Duke Nukem 3D, has diedhttps://www.legacy.com/legacy/robert-bobby-prince-lllhttps://news.ycombinator.com/item?id=48602352How many of the 170k English words do you know?https://vocabowl-870366514258.us-west1.run.app/https://news.ycombinator.com/item?id=48598586Court Records Should Be Freehttps://www.eff.org/deeplinks/2026/06/court-records-should-be-freehttps://news.ycombinator.com/item?id=48600946Ten years of ClickHouse in open sourcehttps://clickhouse.com/blog/open-source-10https://news.ycombinator.com/item?id=48546890Zen and the Art of Machine Learning Researchhttps://blog.jxmo.io/p/zen-and-the-art-of-machine-learninghttps://news.ycombinator.com/item?id=48549118