Hacker NewsInside M4 Apple Neural Engine Reverse Engineering 351 PointsHacker News·high signalXBlueskyLinkedInCopy linkDeep reverse engineering of Apple M4 ANE revealing tiling strategy, memory bandwidth constraints, architecture details.SourceSource pageHacker News↳ Follow the threadPolicy dependency / Stack layerCROSS-CATEGORY: Four Unrelated Vendors Shipped Agent Authorization Control Planes Inside 48 HoursJetStream (corroborated by Genesys Xperience 2026 coverage, aiagentstore.ai and Hacker News Show HN)Stack layer / ContrastThe Post-Training Method, Not the Data, Decides How Refusal Is Computed Inside a ModelarXiv 2609.03887Policy dependency / ContrastCORAL Puts an LLM Agent in a Live Closed Loop on Production Recommenders and Wins Two A/B TestsarXiv 2609.02730Stack layer / Contrastreverify makes an agent's claims about binaries VERIFIED or REFUTED against the actual bytes, and the grounded facts survive context resetsGitHubPolicy dependency / Stack layerFour advisories land on Databricks' Omnigent meta-harness, one critical, all reported by an autonomous security agentGitHub Security AdvisoriesStack layer / ContrastGoogle's WeatherNext 3 Cuts Forecast Grids From 25km/6h to 5km/1h and Ships Into Search and MapsGoogle BlogPolicy dependency / Stack layerTyped Provenance Guardrails Block All 19 Unsafe Releases From a Persistent Agent's Autobiographical MemoryarXiv 2609.02127Stack layer / Follow-up threadRandom Attention: evicting KV cache uniformly at random matches every scored evictor and serves 32-43% more throughputarXiv