What's moving through AI, ranked by lead time.
Radar is a running index of what's moving through the AI ecosystem, ranked by where each story sits on the lead-time gradient: papers become repos become community threads become analysis. Every ingest run of the pipeline takes a fresh snapshot — several times a day, on no fixed clock — and the stamp below is the exact time of the one you're reading. The earlier a story is caught, the more head start you have before the crowd. Every row carries its receipts — which source saw it first, how many independent sources have it, how long ago — so the ranking explains itself. It's the public face of the same pipeline that feeds Vlad's Newsletter.
frozen 6 Sept 2026, 23:59 UTC · 67/78 feeds live · 18,404 tracked since 12 Jun
- 1 Making a Python interpreter in 1024 bytes austinhenley.com · 54m
- 2 It took a year to ship WebAssembly in Anubis anubis.techaro.lol · 4h
- 3 Nitter is unarchived and will continue github.com · 6h
- 4 The agents used better integrity primitives than their operators did lesswrong.com · 12m
- 5 Four Weeks of a Vegan Diet Alter Signs of Inflammation and Aging uniklinik-freiburg.de · 18m
213 stories entered the watched feeds in the last 24 hours — 9 in papers, 6 in repos, 184 in community, 14 in analysis. The scored board skews to Community (40 of 40). 4 stories are heating across independent sources, and the median lead across the ledger's 18 observed fires is 9h — measured, not estimated. Freshest receipt, 42h ago: caught in HN 200+ points 34h before OpenAI News carried it. The oldest survivor has held the board for 8h.
- Community → Analysis +34h lead HN 200+ points first · then OpenAI News 42h agoGPT-6 Astra
- Community → Analysis +6h lead Hacker News front first · then Dwarkesh Patel 7d agoThe Rise and Fall of Agent Civilizations
- Papers → Community +3d lead arXiv cs.AI first · then Hacker News front 9d agoAutonomous Mathematical Discovery in an Open-World Multi-Agent Environment
- 1Making a Python interpreter in 1024 bytesaustinhenley.comLive Signal Community · 54m old · seen in 2 sources HEATING ×2
- 2It took a year to ship WebAssembly in Anubisanubis.techaro.lolLive Signal Community · 4h old · seen in 2 sources HEATING ×2
- 3Nitter is unarchived and will continuegithub.comLive Signal Community · 6h old · seen in 4 sources HEATING ×2
- 4The agents used better integrity primitives than their operators didlesswrong.comLive Signal Community · 12m old · via LessWrong
- 5Four Weeks of a Vegan Diet Alter Signs of Inflammation and Aginguniklinik-freiburg.deLive Signal Community · 18m old · via Hacker News front
- 6Show HN: Maths.free – Learn all of maths, in ordermaths.freeLive Signal Community · 30m old · via Show HN
- 7Competence Has a Maintenance Requirementlesswrong.comLive Signal Community · 36m old · via LessWrong
- 8Show HN: CellularFlow – Continual-learning LLM using associative memorygithub.comLive Signal Community · 42m old · via Show HN
- 9Show HN: Music-player – a music daemon where server and client are one binarygithub.comLive Signal Community · 48m old · via Show HN
- 10Heat Dissipation Is the Main Constraint in Interstellar Travellesswrong.comLive Signal Community · 48m old · via LessWrong
- 11Show HN: Grsshppr – Hop Devices Across Macs (Wi-Fi/BLE/AWDL)grsshppr.appLive Signal Community · 54m old · via Show HN
- 12Show HN: Chrome-bridge – let any AI agent drive your real logged-in Chromegithub.comLive Signal Community · 54m old · via Show HN
- 13Hackers have withdrawn ~4k BTC (~$320M) from the Liquid Federation wallettwitter.comLive Signal Community · 1h old · via Hacker News front
- 14Show HN: 4D Chess – play against a friend or computer4dchess.lolLive Signal Community · 1h old · via Show HN
- 15Political meddling at the Census Bureau damages the US statistical systempiie.comLive Signal Community · 1h old · via Hacker News front
- 16Data races and the limits of ThreadSanitizer in C and Gotheconsensus.devLive Signal Community · 2h old · via Lobsters
- 17llms exposed to a gcg trigger optimised for shannon entropy will randomly choose a persona and stay in itlesswrong.comLive Signal Community · 2h old · via LessWrong
- 18Show HN: Blueprintr – Diagram-first knowledge base with live cloud importblueprintr.ioLive Signal Community · 2h old · via Show HN
- 19NetBSD 9.5 released and EOL for NetBSD-9blog.netbsd.orgLive Signal Community · 8h old · seen in 2 sources HEATING ×2
- 20Show HN: Antifailure, a disposable copy of production for every pull requestantifailure.devLive Signal Community · 2h old · via Show HN
- 21Show HN: MaskShift – a maximalist coding agent with zero NPM dependenciesgithub.comLive Signal Community · 2h old · via Show HN
- 22Show HN: AlternateRealities.lol – Create any kind of poing and click storyalternaterealities.lolLive Signal Community · 3h old · via Show HN
- 23
- 24Show HN: Deviant – Sci-Fi Thriller Movie about the Threat/Promise of AIyoutube.comLive Signal Community · 3h old · via Show HN
- 25Praise our Lord and Savior, Glycine: How Opus 4.6 gifted me The Vitaminlesswrong.comLive Signal Community · 3h old · via LessWrong
- 26
- 27Have the frontier labs mixed up AI safety and security?martinalderson.comLive Signal Community · 3h old · via Lobsters
- 28Show HN: Mador – Make any DOM reactive with a tiny 80-line Proxy state tuplegithub.comLive Signal Community · 3h old · seen in 2 sources
- 29Show HN: Byosynch – Continuous two-way file sync over SSH for Mac and Linuxbyosynch.comLive Signal Community · 3h old · via Show HN
- 30Harnessing the Universal Geometry of Embeddingsarxiv.orgLive Signal Community · 4h old · via Hacker News front
- 31Show HN: Sol, my macOS music player and jukebox app, is now free and open sourcegithub.comLive Signal Community · 4h old · seen in 2 sources
- 32GrapheneOS Overhauled Default Apps and Secure Clipboardgrapheneos.socialLive Signal Community · 4h old · via Hacker News front
- 33Human archive: They were only humansayyss.github.ioLive Signal Community · 4h old · via Hacker News front
- 34Show HN: VODForge – a free local desktop UI for YouTube video/playlist downloadsgetvodforge.comLive Signal Community · 4h old · seen in 2 sources
- 35
- 36Show HN: Agentic OS: one Rust Linux binary, one SQLite and sandbox per entitygithub.comLive Signal Community · 4h old · via Show HN
- 37
- 38Show HN: HexBOTs – a cellular automaton with robotic lawnmowershexbot-genesis.netlify.appLive Signal Community · 4h old · via Show HN
- 39The car industry A/B tested selling a car with and without CarPlaya.wholelottanothing.orgLive Signal Community · 4h old · via Hacker News front
- 40Show HN: Notifyd – one-binary notification service on Postgres, operated via MCPgithub.comLive Signal Community · 4h old · via Show HN
How Radar works
The gradient. Stories travel through the AI ecosystem in a rough sequence: they appear first in papers (arXiv, Hugging Face) or repos (GitHub), then surface in community discussion (Hacker News, Lobsters, LessWrong), then get interpreted in analysis (operator newsletters and essays). Radar ranks by where a story sits on that gradient. The earlier it is caught, the more lead time you have before it reaches consensus. The spectrum at the top of the page shows the last 24 hours of that flow — every story that entered the watched feeds, counted at the station where it first appeared.
The score. Each story gets a recency-decayed signal score. Every source tier carries a weight and a half-life, so live signal moves fast and fades fast while analysis sources move slowly and stay relevant longer. A story scores higher when two or more independent source families carry it — corroboration, not popularity, which is why five feeds of the same site count once. A small bonus applies when a story has visibly climbed the gradient. Stories past their tier's maximum age expire from the board.
Heating and lead time. A story is heating when it has surfaced in two or more independent source families. When the same story is observed first at an earlier stage and later at a higher one, Radar records the gap in hours — for example, seen on arXiv fourteen hours before it reached the Hacker News front page. That gap is the reader's lead time, and it is a measured span, never an estimate.
The honesty rule. Every value on this page is an observed fact from the feed log — which source carried a story, when, and how many. Radar makes no claim about what a story means; that is the newsletter's job. When a reading does not exist yet — no stories heating, nothing upstream — the page says so rather than inventing one.
- The spectrum band
- A filled flame tick is an early, lead-time-rich stage; a hollow tick is a later stage; a hollow ring on an empty span is a station with nothing on it yet.
- Signal class
- The tier chip: Live Signal moves fast and decays fast; analysis sources stay relevant longer. The ranker weights each accordingly.
- heating
- The same story in two or more independent source families — not two feeds of one site.
- seen in / via
- How many families carried it, or the single source that did.
Once a week, the operator read on what actually changed and the move it calls for. No digest, no hype.
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