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 2 Sept 2026, 22:41 UTC · 66/78 feeds live · 18,823 tracked since 12 Jun
- 1 I Don't Have a Smartphone ploum.net · 5h
- 2 Launch HN: RonanRX (YC S26) – Personalized Peptides and GLP-1s ronanrx.com · 6m
- 3 v2.1.259 github.com · 6m
- 4 The Return of Aspect Oriented Programming lesswrong.com · 18m
- 5 The Three P's Theory of Research Organizations lesswrong.com · 24m
589 stories entered the watched feeds in the last 24 hours — 325 in papers, 9 in repos, 226 in community, 29 in analysis. The scored board skews to Community (39 of 40). 2 stories are heating across independent sources, and the median lead across the ledger's 18 observed fires is 8h — measured, not estimated. Freshest receipt, 3d ago: caught in Hacker News front 6h before Dwarkesh Patel carried it. The oldest survivor has held the board for 9h.
- Community → Analysis +6h lead Hacker News front first · then Dwarkesh Patel 3d agoThe Rise and Fall of Agent Civilizations
- Papers → Community +3d lead arXiv cs.AI first · then Hacker News front 5d agoAutonomous Mathematical Discovery in an Open-World Multi-Agent Environment
- Papers → Community +8h lead arXiv cs.AI first · then Show HN 7d agoThe Shadow Price of Intelligence: Quality Degradation in LLM Inference as a Supply Chain Problem
- 1
- 2Launch HN: RonanRX (YC S26) – Personalized Peptides and GLP-1sronanrx.comLive Signal Community · 6m old · via Hacker News front
- 3
- 4The Return of Aspect Oriented Programminglesswrong.comLive Signal Community · 18m old · via LessWrong
- 5The Three P's Theory of Research Organizationslesswrong.comLive Signal Community · 24m old · via LessWrong
- 6Show HN: NoiseVanish – review-first background-noise cleanup for audio and videonoisevanish.comLive Signal Community · 36m old · via Show HN
- 7
- 8Uber shuts operations in Nigeria and Uganda with immediate effectbbc.comLive Signal Community · 54m old · via Hacker News front
- 9Show HN: Instro – Open-source Python library for test and measurementgithub.comLive Signal Community · 1h old · via Show HN
- 10Show HN: Meta-Stripper: Strip Metadata Off. Keep Image Onmetastripper.devkram.deLive Signal Community · 1h old · via Show HN
- 11
- 12A proposal for a highly effective AI safety orglesswrong.comLive Signal Community · 1h old · via LessWrong
- 13Show HN: Dewlock – A minimal, beautiful screen locker for Waylandgithub.comLive Signal Community · 1h old · via Show HN
- 14Show HN: Who or What is it? – A Picture Quizwhoorwhatisit.comLive Signal Community · 1h old · via Show HN
- 15Show HN: I put four persistent AI minds in a room and let them change each otherroom.pluralmatter.comLive Signal Community · 2h old · via Show HN
- 16Show HN: The Drudge Report, but for AItheainewsreport.comLive Signal Community · 2h old · via Show HN
- 17Show HN: 3-in-1 > Collect feedback, build changelog and monitor your endpointsfeedfa.stLive Signal Community · 2h old · via Show HN
- 18Nango (YC W23) is hiring across eng, product and GTM (SF and remote)nango.devLive Signal Community · 2h old · via Hacker News front
- 19
- 20Show HN: Dehurdle – Real-Time AI Voice Simulations for High-Stakes Conversationsdehurdle.comLive Signal Community · 2h old · via Show HN
- 21Show HN: Mousetrapped: Cursor Recovery Utility for macOS- Open Sourcegithub.comLive Signal Community · 2h old · via Show HN
- 22Show HN: AlparAI – Autonomous Swarm OS with Quantum Verificationalparai.comLive Signal Community · 2h old · via Show HN
- 23Show HN: AI coach that adapts workouts and meals to your injuries andrizin.appLive Signal Community · 2h old · via Show HN
- 24Show HN: Local business leads, one API call awaysensecollect.comLive Signal Community · 2h old · via Show HN
- 25Kairos has raised $50M to build talent infrastructure for AI safety (and we're hiring!)lesswrong.comLive Signal Community · 3h old · via LessWrong
- 26Altair Basic Interpreter Source Code (1975) [pdf]images.gatesnotes.comLive Signal Community · 3h old · via Hacker News front
- 27
- 28I wanna live an NPC lifesignalundefied.bearblog.devLive Signal Community · 3h old · via Hacker News front
- 29
- 30Show HN: Cardel, a site builder for authors and other solo professionalscardel.ioLive Signal Community · 3h old · via Show HN
- 31
- 32
- 33
- 34Show HN: Sol, a fast, powerful music player for macOS, with Subsonic supportsol.fulltimefeline.comLive Signal Community · 3h old · via Show HN
- 35The holy grail of nixpkgs: version rangesfzakaria.comLive Signal Community · 3h old · via Lobsters
- 36Show HN: StealthOS, an iOS privacy sandbox with local AI and Torstealthos.appLive Signal Community · 3h old · via Show HN
- 37
- 38
- 39The American Worker vs. the Most Qualifiedmarginallycompelling.comLive Signal Community · 4h old · via Hacker News front
- 40The Qantas A380 engine disintegration in 2010admiralcloudberg.medium.comLive Signal Community · 4h 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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