What's moving through AI, ranked by lead time.
Radar is an hourly 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. 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 16 Jun 2026, 23:50 UTC · 67/78 feeds live · 2,253 tracked since 12 Jun
- 1 Why is Meta destroying its engineering organization? newsletter.pragmaticengineer.com · 7h
- 2 Wolfram Language and Mathematica Version 15, AI Assistant, Symbolic Music, More writings.stephenwolfram.com · 36m
- 3 NLnet announces funding for 67 more open-source projects nlnet.nl · 36m
- 4 Show HN: Sley – a native-Rust Git engine, benchmarked and verified against Git heddle.sh · 42m
- 5 Show HN: Fixing grammar and spelling using on-device Apple Foundation Model github.com · 48m
Today's radar skews to Community (38 of 40). 5 stories are heating across independent sources. 40 arrived in the last 24 hours. The oldest survivor has held the board for 10h.
- 1Why is Meta destroying its engineering organization?newsletter.pragmaticengineer.comAI Firehose Analysis · 7h old · seen in 4 sources HEATING ×2
- 2Wolfram Language and Mathematica Version 15, AI Assistant, Symbolic Music, Morewritings.stephenwolfram.comLive Signal Community · 36m old · via Hacker News front
- 3NLnet announces funding for 67 more open-source projectsnlnet.nlLive Signal Community · 36m old · via Hacker News front
- 4Show HN: Sley – a native-Rust Git engine, benchmarked and verified against Githeddle.shLive Signal Community · 42m old · via Show HN
- 5Show HN: Fixing grammar and spelling using on-device Apple Foundation Modelgithub.comLive Signal Community · 48m old · via Show HN
- 6Computational models of first-order theorieslesswrong.comLive Signal Community · 48m old · via LessWrong
- 7Show HN: Odocs.co – multiplayer draw.io and docs for agent and human collabodocs.coLive Signal Community · 48m old · via Show HN
- 8Humiliating IIS servers for fun and jail timemll.shLive Signal Community · 54m old · via Hacker News front
- 9If This Were a Test, How Much Would It Cost?lesswrong.comLive Signal Community · 1h old · via LessWrong
- 10Show HN: oh-my-reddit – beautiful reddit threads, live in your terminalgithub.comLive Signal Community · 1h old · via Show HN
- 11TIL: You can make HTTP requests without curl using Bash /dev/TCPmareksuppa.comLive Signal Community · 7h old · seen in 3 sources HEATING ×2
- 12Show HN: Reticle – The map your infrastructure operators deservereticleops.comLive Signal Community · 1h old · via Show HN
- 13Show HN: The Oct Programming Language for scientific programminggithub.comLive Signal Community · 1h old · via Show HN
- 14
- 15Show HN: Numax - a portable runtime for distributed appsgithub.comLive Signal Community · 1h old · via Show HN
- 16Show HN: Private Markets SEC Filings Indexsearch.stillhousedata.comLive Signal Community · 2h old · via Show HN
- 17The UK's Teen Social Media Ban Is Political Theater, Not Child Safety Policytechdirt.comLive Signal Community · 2h old · via Hacker News front
- 18Two critiques of Rethink Priorities’ Moral Weights projectlesswrong.comLive Signal Community · 2h old · via LessWrong
- 19Show HN: PromptShark – MitM proxy, C++ loop detector and replay for AI agentsgithub.comLive Signal Community · 2h old · via Show HN
- 20
- 21Show HN: Steam City – Your Steam game library as a 3D citythesteamcity.comLive Signal Community · 2h old · via Show HN
- 22
- 23Two Classical Answers to "What do Two Variables Share?"lesswrong.comLive Signal Community · 3h old · via LessWrong
- 24Show HN: Audit your installed GitHub CLI extensionssjh9714.github.ioLive Signal Community · 3h old · via Show HN
- 25Running local models is good nowvickiboykis.comLive Signal Community · 9h old · seen in 4 sources HEATING ×2
- 26Show HN: Pacwich – lightweight new monorepo tooling on top of Bun, NPM, or pnpmpacwich.devLive Signal Community · 3h old · via Show HN
- 27GrapheneOS has been ported to Android 17 and official releases are coming soondiscuss.grapheneos.orgLive Signal Community · 3h old · seen in 2 sources
- 28But yak shaving is funparksb.github.ioLive Signal Community · 9h old · seen in 2 sources HEATING ×2
- 29Show HN: My Mac shoos me away every time I bite my nailsgithub.comLive Signal Community · 3h old · via Show HN
- 30
- 31Show HN: cuTile Rust: Safe, data-race-free GPU kernels in Rustgithub.comLive Signal Community · 4h old · via Show HN
- 32Frood, an Alpine Initramfs NAS (2024)words.filippo.ioLive Signal Community · 4h old · via Hacker News front
- 33Nobody clicks your share buttonsankursethi.comLive Signal Community · 4h old · via Hacker News front
- 34Show HN: Tally Marks – an app for counting with a handwritten look & feeltallymarks.appLive Signal Community · 4h old · via Show HN
- 35Predicting LLM Safety Before Release by Simulating Deploymentlesswrong.comLive Signal Community · 4h old · seen in 2 sources
- 36Show HN: I'm 15, built an AI that watches your screen and acts before you askgithub.comLive Signal Community · 4h old · via Show HN
- 37Google Chrome update will close the door on ad blockers9to5google.comLive Signal Community · 10h old · seen in 3 sources HEATING ×2
- 38U.S. pulling ocean sensors a 'shock' for Canadian research as El Niño nearstimescolonist.comLive Signal Community · 4h old · seen in 3 sources
- 39Dean Ball - Leviathan Waking: On Anthropic/USG, and a new era in AI governancelesswrong.comLive Signal Community · 4h old · via LessWrong
- 40Show HN: Next.js boilerplate with Better Auth, PostgreSQL and Shadcn/UIgithub.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 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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