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 17 Aug 2026, 23:40 UTC · 67/78 feeds live · 18,654 tracked since 12 Jun
- 1 Quake Shareware, a CD-ROM just a little too full fabiensanglard.net · 2h
- 2 Bluesky draws its logo on screenshots timmarinin.net · 2h
- 3 We Tracked a Shipment of Rare Books. It Ended at an Amazon AI Training Facility simonwillison.net · 8h
- 4 AI;DR (AI; Didn't Read) rickmanelius.com · 4h
- 5 You Can't Iterate to Trustworthy AI Code Without Understanding lesswrong.com · 36m
469 stories entered the watched feeds in the last 24 hours — 207 in papers, 7 in repos, 233 in community, 22 in analysis. The scored board skews to Community (37 of 40). 5 stories are heating across independent sources, and the median lead across the ledger's 20 observed fires is 4h — measured, not estimated. Freshest receipt, 6d ago: caught in Hacker News front 4h before Stratechery carried it. The oldest survivor has held the board for 26h.
- Community → Analysis +4h lead Hacker News front first · then Stratechery 6d agoNvidia's Risky Business
- Repos → Community +35h lead GitHub Trending Python first · then Show HN 7d agosuperlinked/sie
- Community → Analysis +2h lead Hacker News front first · then OpenAI News 10d agoResponding to the next frontier of critical cyber capabilities
- 1Quake Shareware, a CD-ROM just a little too fullfabiensanglard.netLive Signal Community · 2h old · seen in 2 sources HEATING ×2
- 2Bluesky draws its logo on screenshotstimmarinin.netLive Signal Community · 2h old · seen in 2 sources HEATING ×2
- 3We Tracked a Shipment of Rare Books. It Ended at an Amazon AI Training Facilitysimonwillison.netAI Firehose Analysis · 8h old · seen in 2 sources HEATING ×2
- 4AI;DR (AI; Didn't Read)rickmanelius.comLive Signal Community · 4h old · seen in 4 sources HEATING ×2
- 5You Can't Iterate to Trustworthy AI Code Without Understandinglesswrong.comLive Signal Community · 36m old · via LessWrong
- 6Qwen 3.8 27B is excellent, but it defaults to wildly overthinking thingssimonwillison.netAI Firehose Analysis · 26h old · seen in 5 sources HEATING ×3
- 7
- 8Colorado River plummets as lakes Powell and Mead drop to record lowsnytimes.comLive Signal Community · 1h old · via Hacker News front
- 9Fairphone 6 and PostmarketOS working main cameracatcrafts.netLive Signal Community · 2h old · via Hacker News front
- 10Do your readers get annoyed if you post every day for 30 days?lesswrong.comLive Signal Community · 2h old · via LessWrong
- 11What 27 AI Safety Generalists Are Building This Summerlesswrong.comLive Signal Community · 2h old · via LessWrong
- 12My friends all hate AI; I just joined an AI startupfast.aiLive Signal Community · 2h old · via Hacker News front
- 13A practical workflow for LLM-assisted developmentyogthos.netLive Signal Community · 2h old · via Lobsters
- 14Show HN: I made a 3D Globe platform to promote your startup based on your MRRmrrglo.beLive Signal Community · 2h old · via Show HN
- 15Show HN: A blockchain that proves instead of storinggithub.comLive Signal Community · 2h old · via Show HN
- 16
- 17What gives you away: how LLMs form opinions of youlesswrong.comLive Signal Community · 3h old · via LessWrong
- 18How do functions like alloca allocate memory from the stack?devblogs.microsoft.comLive Signal Community · 3h old · via Hacker News front
- 19Show HN: Solo – portable Linux binaries, solvedgithub.comLive Signal Community · 3h old · via Show HN
- 20Show HN: Personal AI tutor that builds and probes your understandinggithub.comLive Signal Community · 3h old · via Show HN
- 21
- 22Show HN: Provenance, a daily game about art theftprovenance.avibagla.comLive Signal Community · 3h old · via Show HN
- 23Show HN: Klar, a simple and opinionated programming languagegithub.comLive Signal Community · 3h old · via Show HN
- 24
- 25Show HN: Engelbart – Mange Goals and TODOs for Claude Codegithub.comLive Signal Community · 3h old · via Show HN
- 26Show HN: Slaunt – control what AI agents can access, do, and executeslaunt.aiLive Signal Community · 3h old · via Show HN
- 27Show HN: Gene Inspector Pro – I built a tool for exploring your own genomegene-inspector.proLive Signal Community · 3h old · via Show HN
- 28
- 29The Origin of Consciousness (2008)blog.plover.comLive Signal Community · 4h old · via Hacker News front
- 30Show HN: Doberman: The AI watchdog that stops Claude from deleting your databasegithub.comLive Signal Community · 4h old · via Show HN
- 31Will you have spent more of your life with computers than your family?beachfront.bearblog.devLive Signal Community · 4h old · via Hacker News front
- 32Evaluating Chain-of-Thought Monitorability is Still an Open Problem: Comments on OpenAI's Monitorability Evalslesswrong.comLive Signal Community · 4h old · via LessWrong
- 33Weird Re-Tokenization, symmetries and compression: research agendalesswrong.comLive Signal Community · 4h old · via LessWrong
- 34India has paved the way for charging merchants a fee on UPI transactionsbbc.comLive Signal Community · 4h old · via Hacker News front
- 35
- 36Show HN: Cronloop, run Claude Code or Codex on a schedulecronloop.aiLive Signal Community · 4h old · via Show HN
- 37Show HN: Tidy – a Mac app that names files by reading what's inside themtidymacapp.comLive Signal Community · 5h old · via Show HN
- 38Show HN: LLM choose-your-own-adventure game to go undercover as top CEOsundercover.gamesLive Signal Community · 5h old · via Show HN
- 39Show HN: A Buyer's Editor to Fix B2B Procurement PDF Hell with API and MCPorbitquote.comLive Signal Community · 5h old · via Show HN
- 40The Lonely Men Who Work in Patagonia, at the End of the Worldnewyorker.comLive Signal Community · 5h old · via Hacker News front
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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