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 1 Aug 2026, 23:14 UTC · 67/78 feeds live · 18,882 tracked since 12 Jun
- 1 But can your calculator run Linux? raymii.org · 4h
- 2 Postmortem for Kernel Soundness Bug #14576 leodemoura.github.io · 5h
- 3 NetBSD 11.0 Released blog.netbsd.org · 5h
- 4 European Search Perspective eu-searchperspective.com · 12m
- 5 Unraveling the mysteries of habit formation kyoto-u.ac.jp · 18m
220 stories entered the watched feeds in the last 24 hours — 14 in papers, 6 in repos, 179 in community, 21 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 23 observed fires is 4h — measured, not estimated. Freshest receipt, 40h ago: caught in Hacker News front 11h before Dynomight carried it. The oldest survivor has held the board for 5h.
- Community → Analysis +11h lead Hacker News front first · then Dynomight 40h agoSo you want to use plants to reduce CO₂
- Community → Analysis +2h lead Hacker News front first · then Google DeepMind 2d agoGemini Robotics 2 brings whole body intelligence to robots
- Community → Analysis +2h lead Hacker News front first · then Construction Physics 2d agoWhy Is Everyone Trying to Build a Solid-State Battery?
- 1But can your calculator run Linux?raymii.orgLive Signal Community · 4h old · seen in 2 sources HEATING ×2
- 2Postmortem for Kernel Soundness Bug #14576leodemoura.github.ioLive Signal Community · 5h old · seen in 2 sources HEATING ×2
- 3
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- 5Unraveling the mysteries of habit formationkyoto-u.ac.jpLive Signal Community · 18m old · via Hacker News front
- 6Morph (YC S23) Is Hiring Member of Technical Stuffycombinator.comLive Signal Community · 24m old · via Hacker News front
- 7"Everyone Has Been Sold a Lie" on AIyoutube.comLive Signal Community · 24m old · via Hacker News front
- 8
- 9Show HN: Optimize circadian rhythms by using iPhone as a light meterimpulsearc.comLive Signal Community · 30m old · via Show HN
- 10Show HN: Understanding the ReMarkable Coordinate Systemscrybble.inkLive Signal Community · 36m old · via Show HN
- 11Show HN: I built a free Open Graph image designermosaicora.ioLive Signal Community · 42m old · via Show HN
- 12From MIT: AI financial advice is surprisingly goodmitsloan.mit.eduLive Signal Community · 48m old · via Hacker News front
- 13Show HN: Pronto – real‑time wire for AI agents (70k+ feeds connected)pronto.streamLive Signal Community · 54m old · via Show HN
- 14Show HN: Created a Drink Journal App, Drinqlydrinqly.ioLive Signal Community · 1h old · via Show HN
- 15Mathematicians may be worried, but AI-for-science is going to be great, recursively self-improving, and we’re going to learn loadslesswrong.comLive Signal Community · 1h old · via LessWrong
- 16Show HN: Evidence-to-Skill – a gate between untrusted sources and agent skillsgithub.comLive Signal Community · 1h old · via Show HN
- 17
- 18Show HN: Check technical fit for B2B prospects without questionnairestryscoped.comLive Signal Community · 2h old · via Show HN
- 19
- 20YC founder asks desperate job seekers to tattoo themselves for an interviewsfstandard.comLive Signal Community · 2h old · via Hacker News front
- 21Show HN: A Google Reader like discovery engine for long-form blogsboredreading.comLive Signal Community · 2h old · via Show HN
- 22Show HN: Lumaris – AI biotech intelligence briefs (sample: EGFR resistance)lumaris.nanocorp.appLive Signal Community · 2h old · via Show HN
- 23Show HN: I made a music player inspired by late 90s peer-to-peer sharingjdanwire.jordanscales.comLive Signal Community · 2h old · via Show HN
- 24
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- 26Show HN: Search Statistics Like an Absolute Psychopathnumber.weyland.enterprisesLive Signal Community · 3h old · via Show HN
- 27The Silicon Valley Founder Meat Grinderzaksa.zipLive Signal Community · 3h old · via Hacker News front
- 28Confirming Claims of Superposition and Adversarial Examples in Toy Modelslesswrong.comLive Signal Community · 3h old · via LessWrong
- 29Show HN: Voris: privacy-first analytics for the AI-influenced webvoris.aiLive Signal Community · 3h old · via Show HN
- 30
- 31Cookware Got Worse on Purpose: Who Owns Pyrex and All-Clad Nowworseonpurpose.comLive Signal Community · 3h old · via Hacker News front
- 32Show HN: Crew, a local collaborative (people and agents) IDEgithub.comLive Signal Community · 3h old · via Show HN
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- 37Show HN: Unified API for wearable and health data at 1/25th of Terra's pricestridee.fitLive Signal Community · 4h old · via Show HN
- 38
- 39Show HN: Cockpit for you Claude Code agents in Rustepisko.devLive Signal Community · 4h old · via Show HN
- 40Signal Structure of the Starlink Ku-Band Downlink (2023) [pdf]radionavlab.ae.utexas.eduLive 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 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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