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This is a recap of the top 10 posts on Hacker News on Jan 20, 2026.Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights(00:00) - Intro (00:18) - Level S4 solar radiation event (01:22) - Apple testing new App Store design that blurs the line between ads and results (02:28) - What came first: the CNAME or the A record? (03:51) - Porsche sold more electrified cars in Europe in 2025 than pure gas-powered cars (05:11) - Prediction markets are ushering in a world in which news becomes about gambling (06:23) - The Overcomplexity of the Shadcn Radio Button (07:38) - Nova Launcher added Facebook and Google Ads tracking (08:36) - Reticulum, a secure and anonymous mesh networking stack (09:41) - Notes on Apple's Nano Texture (2025) (10:40) - The microstructure of wealth transfer in prediction markets (11:57) - Outro Level S4 solar radiation eventhttps://www.swpc.noaa.gov/news/g4-severe-geomagnetic-storm-levels-reached-19-jan-2026https://news.ycombinator.com/item?id=46684056Apple testing new App Store design that blurs the line between ads and resultshttps://9to5mac.com/2026/01/16/iphone-apple-app-store-search-results-ads-new-design/https://news.ycombinator.com/item?id=46680974What came first: the CNAME or the A record?https://blog.cloudflare.com/cname-a-record-order-dns-standards/https://news.ycombinator.com/item?id=46681611Porsche sold more electrified cars in Europe in 2025 than pure gas-powered carshttps://newsroom.porsche.com/en/2026/company/porsche-deliveries-2025-41516.htmlhttps://news.ycombinator.com/item?id=46686640Prediction markets are ushering in a world in which news becomes about gamblinghttps://www.theatlantic.com/technology/2026/01/america-polymarket-disaster/685662/https://news.ycombinator.com/item?id=46670524The Overcomplexity of the Shadcn Radio Buttonhttps://paulmakeswebsites.com/writing/shadcn-radio-button/https://news.ycombinator.com/item?id=46688971Nova Launcher added Facebook and Google Ads trackinghttps://lemdro.id/post/lemdro.id/35049920https://news.ycombinator.com/item?id=46686655Reticulum, a secure and anonymous mesh networking stackhttps://github.com/markqvist/Reticulumhttps://news.ycombinator.com/item?id=46686273Notes on Apple's Nano Texture (2025)https://jon.bo/posts/nano-texture/https://news.ycombinator.com/item?id=46682518The microstructure of wealth transfer in prediction marketshttps://www.jbecker.dev/research/prediction-market-microstructurehttps://news.ycombinator.com/item?id=46680515 What is Hacker News Highlights? Daily overview of the Top 10 Hacker News posts. Post and comment summarization by AI.