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 5 Jul 2026, 23:32 UTC · 65/78 feeds live · 10,112 tracked since 12 Jun
- 1 Composite Video on the NES: Why's it so wobbly? nicole.express · 2h
- 2 Dependencies should be fetched directly from VCS arp242.net · 3h
- 3 Fealty to Fidelity 👰 lesswrong.com · 6m
- 4 Show HN: Logo Design for Busy Founders iconicity.cc · 42m
- 5 Installing A/UX 1.1 like it's the 90s thomasw.dev · 7h
Today's radar skews to Community (38 of 40). 6 stories are heating across independent sources. 39 arrived in the last 24 hours. The oldest survivor has held the board for 5d.
- 1Composite Video on the NES: Why's it so wobbly?nicole.expressLive Signal Community · 2h old · seen in 2 sources HEATING ×2
- 2Dependencies should be fetched directly from VCSarp242.netLive Signal Community · 3h old · seen in 2 sources HEATING ×2
- 3
- 4
- 5Installing A/UX 1.1 like it's the 90sthomasw.devLive Signal Community · 7h old · seen in 2 sources HEATING ×2
- 6DNSGlobe – Rust TUI to watch DNS propagate around the worldgithub.comLive Signal Community · 2h old · via Hacker News front
- 7CoCom regulations and GPS receivers for balloons and cubesatsspace.stackexchange.comLive Signal Community · 2h old · via Hacker News front
- 8Had an idea for a Rust editor with simple Vim mode for learninggithub.comLive Signal Community · 2h old · via Hacker News front
- 9Show HN: Homegames. An open-source game platform I've been making for 8 yearshomegames.ioLive Signal Community · 2h old · seen in 2 sources
- 10Completing a Computer Science Degree on Courseranotesbylex.comLive Signal Community · 2h old · via Hacker News front
- 11Show HN: Can I Walk My Dog? Weather-based safety calculator for dog walksrainbow-salmiakki-336e9b.netlify.appLive Signal Community · 2h old · via Show HN
- 12sqlite-utils 4.0rc2, mostly written by Claude Fable (for about $149.25)simonwillison.netAI Firehose Analysis · 23h old · seen in 2 sources HEATING ×2
- 13Show HN: Thunderstorm tracker for Mexico England world cup gametlaloc.cloudLive Signal Community · 2h old · via Show HN
- 14Reparaible and open source paper printeropentools.studioLive Signal Community · 3h old · seen in 2 sources
- 15Dungeon Proof Crawler: learn how to write proofs with RPGdhilst.github.ioLive Signal Community · 3h old · via Hacker News front
- 16
- 17Chip Off The Old Blockastralcodexten.comContrarian Analysis · 5d old · seen in 2 sources HEATING ×2
- 18Show HN: clip.video - Turn podcasts and long videos into short vertical clipsclip.videoLive Signal Community · 3h old · via Show HN
- 19Show HN: Sidenote – comment on your rendered blog, an LLM writes the Git diffgithub.comLive Signal Community · 3h old · via Show HN
- 20Show HN: A bedside camera detects REM sleep and agrees with a clinical EEGlucidcode.comLive Signal Community · 3h old · via Show HN
- 21Show HN: Osint tool that finds exposed files on domainssearch.cerast-intelligence.comLive Signal Community · 3h old · seen in 2 sources
- 22Zero-copy in Go: sendfile, splice, and the cost of io.Copysegflow.github.ioLive Signal Community · 3h old · via Hacker News front
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- 25Time-based background colour transitions with Temporal and CSS color-mixlocalghost.devLive Signal Community · 3h old · via Lobsters
- 26Show HN: Social and context-aware AI platform to do mathprooftree.aiLive Signal Community · 3h old · via Show HN
- 27Cursed circuits #5: capacitance multiplierlcamtuf.substack.comLive Signal Community · 4h old · via Hacker News front
- 28Run Windows 2000 on a DEC Alpha with a new es40 forkraymii.orgLive Signal Community · 10h old · seen in 2 sources HEATING ×2
- 29
- 30Show HN: 3·6·9 COMMANDER, a turn-based strategy card gameforgottenmachine.itch.ioLive Signal Community · 4h old · via Show HN
- 31Version-controlled databases using Prolly treeslwn.netLive Signal Community · 4h old · via Lobsters
- 32When Gemma Thinks About Resources - it Fails: a Behavioral Experimentlesswrong.comLive Signal Community · 4h old · via LessWrong
- 33Delta flight hit by firework while landing at Midway Airport on Fourth of Julynbcchicago.comLive Signal Community · 4h old · via Hacker News front
- 34Show HN: TrainSim – a browser train tycoonaashishh15.github.ioLive Signal Community · 4h old · via Show HN
- 35Show HN: Make No Mistakes – AI coding agents must prove their workgithub.comLive Signal Community · 4h old · via Show HN
- 36
- 37New AI tutor achieves 0.71-1.30 SD effect size in Dartmouth course [pdf]intextbooks.science.uu.nlLive Signal Community · 5h old · via Hacker News front
- 38Show HN: Nomlings – a virtual pet that eats your Claude Code session's tokensnomlings.ccLive Signal Community · 5h old · via Show HN
- 39
- 40Jim Keller's startup is building a factory to mass-produce small chip fabstomshardware.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 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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