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 30 Jul 2026, 22:29 UTC · 67/78 feeds live · 19,459 tracked since 12 Jun
- 1 Stacked PRs are now live on GitHub github.blog · 6h
- 2 Why Is Everyone Trying to Build a Solid-State Battery? construction-physics.com · 10h
- 3 Opportunity to try drafting an international AI treaty lesswrong.com · 36m
- 4 Rune 1.1: adds Python, an Emacs editor, a symbol index and is now free rune.build · 42m
- 5 Show HN: Abendrot – The free and open-source macOS app for your circadian rhythm github.com · 54m
452 stories entered the watched feeds in the last 24 hours — 179 in papers, 7 in repos, 237 in community, 29 in analysis. The scored board skews to Community (40 of 40). 2 stories are heating across independent sources, and the median lead across the ledger's 22 observed fires is 4h — measured, not estimated. Freshest receipt, 4h ago: caught in Hacker News front 2h before Google DeepMind carried it. The oldest survivor has held the board for 10h.
- Community → Analysis +2h lead Hacker News front first · then Google DeepMind 4h agoGemini Robotics 2 brings whole body intelligence to robots
- Community → Analysis +2h lead Hacker News front first · then Construction Physics 6h agoWhy Is Everyone Trying to Build a Solid-State Battery?
- Papers → Community +9h lead arXiv cs.AI first · then Hacker News front 31h agoHANDBOOK.md: A Benchmark for Long-Context Agentic Instruction Following
- 1Stacked PRs are now live on GitHubgithub.blogLive Signal Community · 6h old · seen in 3 sources HEATING ×2
- 2Why Is Everyone Trying to Build a Solid-State Battery?construction-physics.comLive Signal Community · 10h old · seen in 2 sources HEATING ×2 +2h lead
- 3Opportunity to try drafting an international AI treatylesswrong.comLive Signal Community · 36m old · via LessWrong
- 4Rune 1.1: adds Python, an Emacs editor, a symbol index and is now freerune.buildLive Signal Community · 42m old · via Hacker News front
- 5Show HN: Abendrot – The free and open-source macOS app for your circadian rhythmgithub.comLive Signal Community · 54m old · via Show HN
- 6Community Polls on Alignment Controversies IIlesswrong.comLive Signal Community · 1h old · via LessWrong
- 7
- 8My Assessment of Compute Verification in Plan A (+ open questions)lesswrong.comLive Signal Community · 2h old · via LessWrong
- 9Hint-based CoT faithfulness evals still mostly work on Claudelesswrong.comLive Signal Community · 2h old · via LessWrong
- 10Show HN: Panini – bundle a Gleam app and BEAM into one self-contained binarygithub.comLive Signal Community · 2h old · via Show HN
- 11Show HN: Interlock – Python circuit breaker tripping on latency, not just errorsgithub.comLive Signal Community · 2h old · via Show HN
- 12Show HN: Logan Basic v2.1 - An online BASIC interpreter.sinusoft.comLive Signal Community · 2h old · via Show HN
- 13Show HN: Loupe – Chrome extension that explains WCAG issues in plain Englishgetloupe.devLive Signal Community · 2h old · via Show HN
- 14Show HN: Collie – a local AI harness that runs the browser, desktop and codegithub.comLive Signal Community · 2h old · via Show HN
- 15Show HN: Summarizer.Free – Too Long? Get the TL;DRsummarizer.freeLive Signal Community · 2h old · via Show HN
- 16Show HN: NMEMORY – a memory for coding agents that says when it doesn't knowgithub.comLive Signal Community · 2h old · via Show HN
- 17Show HN: WorldDiT – a 399M world-action model for simulated robot taskshuggingface.coLive Signal Community · 2h old · via Show HN
- 18Show HN: TaskView – self-hosted project management for teamsgithub.comLive Signal Community · 2h old · via Show HN
- 19Show HN: Name100Challenge – name 100 famous women in 12 minutesname100challenge.comLive Signal Community · 2h old · via Show HN
- 20Show HN: Free career tools that show how recruiters read your resumeheyresume.coLive Signal Community · 3h old · via Show HN
- 21Show HN: Aina – autotune an ONNX model and deploy it across an edge fleetgithub.comLive Signal Community · 3h old · via Show HN
- 22Internal State Control is a General Property of LLMslesswrong.comLive Signal Community · 3h old · via LessWrong
- 23New role: Senior Researcher - MIT AI Risk Initiativelesswrong.comLive Signal Community · 3h old · via LessWrong
- 24Agent Skill to Force Docs in ASD-STE100 Simplified Technical Englishgithub.comLive Signal Community · 3h old · via Hacker News front
- 25So you want to use plants to reduce CO₂lesswrong.comLive Signal Community · 3h old · via LessWrong
- 26std.Io.Writer.Allocating ate all my memoryopenmymind.netLive Signal Community · 3h old · via Lobsters
- 27Show HN: WiPhone Lab – Doom on an Open ESP32 Wi-Fi Phonegithub.comLive Signal Community · 3h old · via Show HN
- 28
- 29
- 30Show HN: EyeReset – Evidence-based eye-strain relief (no account, local-only)yeshivsher.comLive Signal Community · 4h old · via Show HN
- 31Show HN: I bet your hardest customer orders can be automated. Challenge Zentriqzentriqai.comLive Signal Community · 4h old · via Show HN
- 32Show HN: NegativeEV – I built a tool to help people see how bad their bets arenegativeev.comLive Signal Community · 4h old · via Show HN
- 33UEFA and its national associations will not participate in FIFA competitionsuefa.comLive Signal Community · 4h old · seen in 3 sources
- 34
- 35Show HN: I'm a senior estimator, I open sourced my construction takeoff toolgithub.comLive Signal Community · 4h old · via Show HN
- 36Show HN: Leia – a CLI to oneshot playlists onto Yoto MYO cardsgithub.comLive Signal Community · 4h old · via Show HN
- 37Show HN: APIgen – Generate Fusio REST APIs and Angular UIs from TypeSchemaapigen.appLive Signal Community · 4h old · via Show HN
- 38So you want to use plants to reduce CO₂dynomight.netLive Signal Community · 4h old · via Hacker News front
- 39Show HN: A single character turns primitive recursion into general recursiongithub.comLive Signal Community · 4h old · via Show HN
- 40Show HN: State of the Feed – TikTok usage analyzedwrapped.vantezzen.ioLive Signal Community · 4h 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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