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 Aug 2026, 23:15 UTC · 67/78 feeds live · 18,573 tracked since 12 Jun
- 1 SwiftUI After 7 Years: A Story of Mediocrity ykvm.com · 4h
- 2 Neuron Statistics: Notes on the Tensor Programs Master Theorem lesswrong.com · 36m
- 3 Single Forward Pass Evals on Fable, Opus 5, and GPT-5.6-Sol lesswrong.com · 36m
- 4 Show HN: STB-like zero-dependency O(N) FMM gravity solver github.com · 42m
- 5 Pause, at least after unipolarity lesswrong.com · 42m
229 stories entered the watched feeds in the last 24 hours — 11 in papers, 10 in repos, 198 in community, 10 in analysis. The scored board skews to Community (40 of 40). 3 stories are heating across independent sources, and the median lead across the ledger's 24 observed fires is 5h — measured, not estimated. Freshest receipt, 12h ago: caught in arXiv cs.AI 9d before Hacker News front carried it. The oldest survivor has held the board for 11h.
- Papers → Community +9d lead arXiv cs.AI first · then Hacker News front 12h agoGenerative AI floods and dilutes the market for books
- Community → Analysis +11h lead Hacker News front first · then Dynomight 3d agoSo you want to use plants to reduce CO₂
- Community → Analysis +2h lead Hacker News front first · then Google DeepMind 3d agoGemini Robotics 2 brings whole body intelligence to robots
- 1SwiftUI After 7 Years: A Story of Mediocrityykvm.comLive Signal Community · 4h old · seen in 2 sources HEATING ×2
- 2Neuron Statistics: Notes on the Tensor Programs Master Theoremlesswrong.comLive Signal Community · 36m old · via LessWrong
- 3Single Forward Pass Evals on Fable, Opus 5, and GPT-5.6-Sollesswrong.comLive Signal Community · 36m old · via LessWrong
- 4Show HN: STB-like zero-dependency O(N) FMM gravity solvergithub.comLive Signal Community · 42m old · via Show HN
- 5
- 6CP/M-386: CP/M for 386 protected mode, derived from CP/M-68Kgithub.comLive Signal Community · 48m old · via Lobsters
- 7Rooting, firmware analysis and persistent credentials of TP-Link TL-841Nblog.juni-mp4.comLive Signal Community · 7h old · seen in 2 sources HEATING ×2
- 8Californians' data deletion requests, DROP, become enforceable Aug. 1nbcsandiego.comLive Signal Community · 1h old · via Hacker News front
- 9Show HN: Cl33-opLM, a 236M language model with a reversible operator bottleneckcl33.t3atlas.devLive Signal Community · 1h old · via Show HN
- 10Show HN: Alfa) Killing AI hallucinations with resonancegithub.comLive Signal Community · 1h old · via Show HN
- 11Can you make a Wii U gamepad from a Raspberry Pi?youtube.comLive Signal Community · 2h old · via Lobsters
- 12Show HN: Testimonials.Free ~1 KB embed widget, zero layout shifttestimonials.freeLive Signal Community · 2h old · via Show HN
- 13
- 14
- 15Controlling Your Environment Makes You Happy (2000)joelonsoftware.comLive Signal Community · 2h old · via Lobsters
- 16Show HN: I implemented the Kimi K3 paper from scratch in PyTorchgithub.comLive Signal Community · 2h old · via Show HN
- 17Industrializing a small field: Lessons from Vannevarlesswrong.comLive Signal Community · 2h old · via LessWrong
- 18Show HN: Draco – A single-binary, self-hostable Firecrawl alternative in Rustgithub.comLive Signal Community · 3h old · seen in 2 sources
- 19AI Mania: From Tulips to Tokensseanhelvey.comLive Signal Community · 3h old · via Hacker News front
- 20EU Age Verification Project Mandates Hardware-Bound Attestationlinuxiac.comLive Signal Community · 3h old · via Hacker News front
- 21Dispatch from Anthropic v. Department of War Summary Judgment Motion Hearinglesswrong.comLive Signal Community · 3h old · via LessWrong
- 22Anthropic's Fever Dream: Claude's package that stole real keysaikido.devLive Signal Community · 3h old · via Hacker News front
- 23Show HN: Authoryze- payment controls for AI agentsauthoryze.aiLive Signal Community · 3h old · via Show HN
- 24Show HN: Make your Framework 12 sound like a creaky doorgithub.comLive Signal Community · 3h old · seen in 2 sources
- 25Faster floating point math with Rust’s new APIpythonspeed.comLive Signal Community · 3h old · via Lobsters
- 26Sharing an X11 Server Across Hosts with FamilyWilddobrowolski.devLive Signal Community · 3h old · via Hacker News front
- 27
- 28Adding Go's Defer to the TypeScript Compilerhealeycodes.comLive Signal Community · 3h old · via Hacker News front
- 29Show HN: MicroCodex Coding Agent – OpenAI/codex reimplemented in C++ <1MB binarygithub.comLive Signal Community · 3h old · via Show HN
- 30TinyNES Review – A Super Niche NES Consoleblog.lon.tvLive Signal Community · 3h old · via Hacker News front
- 31Show HN: My public second brain – 660 notes, 15 years, open sourcessp.shLive Signal Community · 4h old · via Show HN
- 32My personal AI benchmark: "Generate an SVG of a frog with a Habsburg jaw."frogs.vaguespac.esLive Signal Community · 4h old · via Hacker News front
- 33EU rules on AI models become enforceable. What's going to change?euronews.comLive Signal Community · 4h old · via Hacker News front
- 34Europe EV Sales BEVs Jump 50% & Reach 26% Market Sharecleantechnica.comLive Signal Community · 4h old · via Hacker News front
- 35'Crush this lady': how eBay harassment campaign led to $56M payoutft.comLive Signal Community · 4h old · via Hacker News front
- 36Show HN: Framer Theme Toggle Component for Light and Dark Modepixcodrops.comLive Signal Community · 4h old · via Show HN
- 37Show HN: Kota – Bring AI agent CLIs into the same roomkota.placeLive Signal Community · 4h old · via Show HN
- 38Microsoft raises Xbox prices by up to 43%theverge.comLive Signal Community · 4h old · via Hacker News front
- 39Show HN: Build SaaS Applications Without Writing Back End Code [video]youtube.comLive Signal Community · 5h old · via Show HN
- 40Twenty Years of RISC OS Openriscosopen.orgLive Signal Community · 11h old · seen in 2 sources HEATING ×2
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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