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 2 Jul 2026, 23:31 UTC · 67/78 feeds live · 9,202 tracked since 12 Jun
- 1 Chip Off The Old Block astralcodexten.com · 44h
- 2 crustc: entirety of `rustc`, translated to C github.com · 36m
- 3 The Case for AI Behavioral Science lesswrong.com · 42m
- 4 Show HN: Gist Discover – TikTok for ArXiv Summaries gist.is · 48m
- 5 Mystery identity of 'Green Boots' climber is finally solved after DNA test dailymail.com · 48m
Today's radar skews to Community (39 of 40). 3 stories are heating across independent sources. 39 arrived in the last 24 hours. The oldest survivor has held the board for 44h.
- 1Chip Off The Old Blockastralcodexten.comContrarian Analysis · 44h old · seen in 2 sources HEATING ×2
- 2crustc: entirety of `rustc`, translated to Cgithub.comLive Signal Community · 36m old · via Hacker News front
- 3
- 4Show HN: Gist Discover – TikTok for ArXiv Summariesgist.isLive Signal Community · 48m old · via Show HN
- 5Mystery identity of 'Green Boots' climber is finally solved after DNA testdailymail.comLive Signal Community · 48m old · via Hacker News front
- 6Lydia Laurenson: "The Inside Story of Leverage Research"lesswrong.comLive Signal Community · 54m old · via LessWrong
- 7Show HN: A 155K-param transformer builds a map of a world it's never shownankur-chr.github.ioLive Signal Community · 54m old · via Show HN
- 8Show HN: Mirrors – test AI agent changes by replaying real production tracesrunmirrors.comLive Signal Community · 1h old · via Show HN
- 9Show HN: NEUX A daily brief on Europe's critical industriesneuxresearch.comLive Signal Community · 1h old · via Show HN
- 10Show HN: Fin – a TUI Jellyfin client powered by mpv with Chromecast supportgithub.comLive Signal Community · 2h old · via Show HN
- 11When Role-playing, Do Models Believe What They Say?lesswrong.comLive Signal Community · 2h old · via LessWrong
- 12Show HN: I built an app to find your competitorsopencorp.liveLive Signal Community · 2h old · via Show HN
- 13Show HN: I built Halo, a private AI assistant for your Mac (free)heyhalo.appLive Signal Community · 2h old · via Show HN
- 14Show HN: Meanwhile – turn Claude Code idle time into learninggithub.comLive Signal Community · 2h old · via Show HN
- 15Show HN: Declaw Arena – a CTF-style challenge to break an AI agent in a microVMdeclaw.aiLive Signal Community · 2h old · via Show HN
- 16Simple, beautiful Emacs modeline: modusregelcodeberg.orgLive Signal Community · 2h old · via Hacker News front
- 17Show HN: Run multiple Docker Compose instances for your agentsnews.ycombinator.comLive Signal Community · 2h old · via Show HN
- 18Show HN: Auto Learning Agents, a self-hosted AI agent platform on Elixir/OTPautolearningagents.comLive Signal Community · 2h old · via Show HN
- 19Since Linux 6.9, LUKS suspend stopped wiping disk-encryption keys from memorymathstodon.xyzLive Signal Community · 8h old · seen in 4 sources HEATING ×2
- 20Show HN: NeuralFit game - Adjust the neural network weights manuallyneuralfit.ai201.siteLive Signal Community · 2h old · via Show HN
- 21Show HN: Visualizing Contrastive Language-Audio Pretraining (Clap)adamsohn.comLive Signal Community · 2h old · via Show HN
- 22Show HN: Material 3 Expressive Web Componentsmatraic.github.ioLive Signal Community · 2h old · via Show HN
- 23
- 24US State of Virginia Bans Sale of Geolocation Datahunton.comLive Signal Community · 3h old · via Hacker News front
- 25Show HN: Vulns in production OSS, at $6–7 per full codebase scanmedium.comLive Signal Community · 3h old · via Show HN
- 26Show HN: A tracker and synthesizer in your web browserplayrowbot.comLive Signal Community · 3h old · via Show HN
- 27
- 28Show HN: How much of your index fund is companies you don't want to own?sylph.fyiLive Signal Community · 3h old · via Show HN
- 29Show HN: BYOTag – Build your own Claude tag alternative in 3 API callsbuildyourownclaudetag.devLive Signal Community · 3h old · via Show HN
- 30No LLM code in dependenciesjoeyh.nameLive Signal Community · 9h old · seen in 2 sources HEATING ×2
- 31
- 32Newly discovered PamStealer isn't your typical macOS malwarearstechnica.comLive Signal Community · 3h old · via Lobsters
- 33
- 34Show HN: Napkinbook – an infinite computational whiteboard/dashboardnapkinbook.comLive Signal Community · 4h old · via Show HN
- 35Lightning Memory-Mapped Database Manager (LMDB) 1.0lmdb.techLive Signal Community · 4h old · via Hacker News front
- 36You Should Choose How You React to Your Feelingslesswrong.comLive Signal Community · 4h old · via LessWrong
- 37
- 38Show HN: Collection of skills to help improve UX and AI Product designgithub.comLive Signal Community · 4h old · via Show HN
- 39
- 40Great Salt Lake Tracker – Grow the Flowgrowtheflowutah.orgLive 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 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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