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 18 Jul 2026, 23:13 UTC · 67/78 feeds live · 15,268 tracked since 12 Jun
- 1 Repeatable Read vs Snapshot Isolation jaymcor.github.io · 1h
- 2 Mayor Mamdani Says Landlords Can't Use AI Images to Advertise petapixel.com · 1h
- 3 Real-Time LuaTeX: Recompiling Large Documents in 1ms [pdf] tug.org · 1h
- 4 Show HN: RewindCup – explore 23 World Cups on an interactive globe rewindcup.com · 1h
- 5 Judge a book by its first pages uncovered.ink · 1h
210 stories entered the watched feeds in the last 24 hours — 9 in papers, 11 in repos, 165 in community, 25 in analysis. The scored board skews to Community (38 of 40). 3 stories are heating across independent sources, and the median lead across the ledger's 17 observed fires is 5h — measured, not estimated. Freshest receipt, 13h ago: caught in HF Daily Papers 2h before Hacker News front carried it. The oldest survivor has held the board for 5d.
- Papers → Community +2h lead HF Daily Papers first · then Hacker News front 13h agoQubes OS Security in the Public Record
- Papers → Community +20h lead arXiv cs.AI first · then Hacker News front 2d agoMathematics of Data Science
- Papers → Community +11d lead arXiv cs.AI first · then Hacker News front 5d agoAdoption and Impact of Command-Line AI Coding Agents: A Study of Microsoft's Early 2026 Rollout of Claude Code and GitHub Copilot CLI
- 1Repeatable Read vs Snapshot Isolationjaymcor.github.ioLive Signal Community · 1h old · via Lobsters
- 2Mayor Mamdani Says Landlords Can't Use AI Images to Advertisepetapixel.comLive Signal Community · 1h old · via Hacker News front
- 3Real-Time LuaTeX: Recompiling Large Documents in 1ms [pdf]tug.orgLive Signal Community · 1h old · via Hacker News front
- 4Show HN: RewindCup – explore 23 World Cups on an interactive globerewindcup.comLive Signal Community · 1h old · via Show HN
- 5Judge a book by its first pagesuncovered.inkLive Signal Community · 1h old · via Hacker News front
- 6Classic Amiga titles, free to downloadamigafreeware.downer.techLive Signal Community · 1h old · via Hacker News front
- 7
- 8Hardcore IndieWeb: Run your own website 100% independently for only $0.01/dayneatnik.netLive Signal Community · 2h old · via Hacker News front
- 9
- 10OpenSSL HollowByte: A DoS Hiding in 11 Bytessec.okta.comLive Signal Community · 2h old · via Lobsters
- 11Show HN: Graph Context Engine for Reliable AIkritama.comLive Signal Community · 2h old · via Show HN
- 12
- 13SpaceX and the myth of independent Wall St researchft.comLive Signal Community · 3h old · via Hacker News front
- 14Show HN: Waylou / a multi-provider CLI coding agent / fork of Gemini CLIgithub.comLive Signal Community · 4h old · via Show HN
- 15Typing Speed Test, but for Developershaxxorwpm.0s.isLive Signal Community · 4h old · via Hacker News front
- 16Show HN: Medows – an AI clinical workspace for doctors on ward roundsmedows.aiLive Signal Community · 4h old · via Show HN
- 17Show HN: Firedeck – Firebase Console for iPhone and iPadfiredeck.netLive Signal Community · 4h old · via Show HN
- 18Show HN: Typedeck – a Mac presentation app with a deterministic layout engineapps.apple.comLive Signal Community · 4h old · via Show HN
- 19Show HN: Voronoi Go – The game of Go without the gridvoronoigo.comLive Signal Community · 4h old · via Show HN
- 20Show HN: SDF Pelicans on Bicyclepelican.vibe-overflow.comLive Signal Community · 4h old · via Show HN
- 21"Half a Second" - a book on the XZ backdoorhalf-second.comLive Signal Community · 4h old · via Lobsters
- 22What's the deal with all the random weekly quota resets for agents lately?minimaxir.comLive Signal Community · 4h old · via Hacker News front
- 23
- 24Goodbye, and thanks for all the Bikeshedsqueue.acm.orgLive Signal Community · 10h old · seen in 2 sources HEATING ×2
- 25A Red Line and Oversight Framework for Government AI Contractslesswrong.comLive Signal Community · 4h old · seen in 2 sources
- 26
- 27Show HN: Chrdmp – Decrypt Chrome profile data offline using the keyring secretgithub.comLive Signal Community · 4h old · via Show HN
- 28Show HN: A pre-launch scanner for AI-built apps (it scores itself 60/100)shippingszn.comLive Signal Community · 5h old · via Show HN
- 29
- 30REO Trucks I4 4WD Pickup Truck Starts at $21,500reotrucks.comLive Signal Community · 5h old · via Hacker News front
- 31wp2shell: Pre Authentication RCE in WordPress Corewp2shell.comLive Signal Community · 5h old · via Lobsters
- 32Nuances in the Workings of the Eye and Retinalesswrong.comLive Signal Community · 5h old · via LessWrong
- 33Show HN: Get alerts for good seats at 70mm IMAX showings of The Odysseyimaxxing.ioLive Signal Community · 5h old · seen in 2 sources
- 34
- 35Show HN: Todowing – A browser extension that shows Todoist sub-tasks inlinetodowing.comLive Signal Community · 6h old · via Show HN
- 36The Coming of the Global Brain: A Review of "The God Test"lesswrong.comLive Signal Community · 6h old · via LessWrong
- 37Moonshot is Chinese But Its AI Models Are From Another Planetthealgorithmicbridge.comAI Firehose Analysis · 4h old · via The Algorithmic Bridge
- 38Show HN: Warden – authorization gateway for agentic RAGgithub.comLive Signal Community · 6h old · via Show HN
- 39
- 40Show HN: Worldle Game, but Multiplayer Versionlandfall.manojvivek.workers.devLive Signal Community · 6h 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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