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 15 Jul 2026, 23:14 UTC · 67/78 feeds live · 14,199 tracked since 12 Jun
- 1 SQLite should have editions mort.coffee · 4h
- 2 Nul Characters in Strings in SQLite sqlite.org · 12m
- 3 v2.1.211 github.com · 12m
- 4 Recap of bike trip/street interviews across America lesswrong.com · 12m
- 5 Metal-Organic Frameworks, Chemistry's New Miracle Materials chemistry.berkeley.edu · 12m
337 stories entered the watched feeds in the last 24 hours — 25 in papers, 14 in repos, 266 in community, 32 in analysis. The scored board skews to Community (39 of 40). 1 story is heating across independent sources, and the median lead across the ledger's 15 observed fires is 5h — measured, not estimated. Freshest receipt, 44h ago: caught in arXiv cs.AI 11d before Hacker News front carried it. The oldest survivor has held the board for 4h.
- Papers → Community +11d lead arXiv cs.AI first · then Hacker News front 44h agoAdoption and Impact of Command-Line AI Coding Agents: A Study of Microsoft's Early 2026 Rollout of Claude Code and GitHub Copilot CLI
- Papers → Community +3d lead HF Daily Papers first · then Hacker News front 4d agoBillions of Sketches Reveal Hidden Cultural Variation in Human Concepts
- Community → Analysis +2h lead Hacker News best first · then OpenAI News 6d agoGPT-5.6
- 1SQLite should have editionsmort.coffeeLive Signal Community · 4h old · seen in 2 sources HEATING ×2
- 2Nul Characters in Strings in SQLitesqlite.orgLive Signal Community · 12m old · via Hacker News front
- 3
- 4Recap of bike trip/street interviews across Americalesswrong.comLive Signal Community · 12m old · via LessWrong
- 5Metal-Organic Frameworks, Chemistry's New Miracle Materialschemistry.berkeley.eduLive Signal Community · 12m old · via Hacker News front
- 6Abstracting effects with continuationscrowdhailer.meLive Signal Community · 18m old · via Lobsters
- 7The Anti-Mac User Interface (1996)nngroup.comLive Signal Community · 24m old · via Hacker News front
- 8Show HN: H5i-Python: Python SDK for Programmable Multi-Agent Orchestrationgithub.comLive Signal Community · 48m old · via Show HN
- 9P2P local file transfer based on WebRTCpairdrop.netLive Signal Community · 54m old · via Hacker News front
- 10
- 11
- 12Show HN: Pullboard – a work queue for agents, built to run a quant deskpullboard.devLive Signal Community · 1h old · via Show HN
- 13Show HN: Redis Rubix Bridge a HTTP API Redis Gatewaygithub.comLive Signal Community · 2h old · via Show HN
- 14Speculative Growth and the AI "Bubble" [pdf]economics.mit.eduLive Signal Community · 2h old · via Hacker News front
- 15
- 16We don't use AI in any of our design or production processesmass-driver.comLive Signal Community · 2h old · via Hacker News front
- 17
- 18
- 19A Structural Similarity Between Two Open Corrigibility Questionslesswrong.comLive Signal Community · 2h old · via LessWrong
- 20Governments, companies, nonprofits should invest in free, open source AI [pdf]siegelendowment.orgLive Signal Community · 2h old · via Hacker News front
- 21LLM CoTs remain monitorable when being unfaithful requires computationlesswrong.comLive Signal Community · 2h old · via LessWrong
- 22Show HN: Autoportrait Playground – painting timelapses in the browserphilipweiss.netLive Signal Community · 2h old · via Show HN
- 23AI Data Centers and the Concentration of Wealthschneier.comLive Signal Community · 2h old · via Lobsters
- 24
- 25Show HN: GitHub Contribution Graph Paintercontributist.stupidity.worksLive Signal Community · 2h old · via Show HN
- 26Show HN: webcast.social – Got MP3s? Host your own radio show from the browserwebcast.socialLive Signal Community · 2h old · via Show HN
- 27Show HN: Firefox in WebAssemblydeveloper.puter.comLive Signal Community · 2h old · seen in 2 sources
- 28Extreme Power Concentration: A Map and Research Directionslesswrong.comLive Signal Community · 2h old · via LessWrong
- 29Show HN: PostgreSQL Now Supported in DBTrailgithub.comLive Signal Community · 2h old · via Show HN
- 30Show HN: ScreenshotAPIs – screenshot/PDF API with credits that never expirescreenshotapis.orgLive Signal Community · 2h old · via Show HN
- 31Show HN: Spellsurf – Create words from wordsspellsurf.comLive Signal Community · 3h old · via Show HN
- 32Show HN: Scrib.ee – A customizable blogging platform I built as a solo developerscrib.eeLive Signal Community · 3h old · via Show HN
- 33
- 34Show HN: Vendo (YC S26) – Let your users add their own features to your productgithub.comLive Signal Community · 3h old · via Show HN
- 35
- 36Show HN: Marketing for Solo Technical Foundersfrhog.comLive Signal Community · 3h old · via Show HN
- 37Show HN: Gate.cat – block an AI coding agent's rm -RF before it runsgate.catLive Signal Community · 3h old · via Show HN
- 38Show HN: An incremental build cache for Rust on GHAgithub.comLive Signal Community · 3h old · via Show HN
- 39Show HN: BibleFollow – Scroll the Bible instead of social mediabiblefollow.comLive Signal Community · 3h old · via Show HN
- 40Third-party app stores coming to Google Play next week as Epic settlement withdrawnarstechnica.comLive Signal Community · 3h old · via Lobsters
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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