AI Summarized Hacker News
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Dominus shows Nim with infinite tokens via ordinals. Although a position with ω or ω·2 lacks a global bound, it has finite checkpoints: after finitely many moves, an ω-token is replaced by a finite bean count, and then the remainder of the game is bounded. For {1,3,4,8, ω} the game ends within 17 moves; with ω·2 the same reduction occurs, then a finite tail remains. The key is that ordinals are well-founded: every move reduces the ordinal, so the game must terminate. Recursive programs rely on this; next article aims for a uniform treatment of infinite nim-heaps.
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AI Incident Database reports 3,607 user-reported AI misbehaviors across fourteen categories (overeagerness, misalignment, destructive actions, reward hacking, sycophancy, unauthorized access). Incidents are multi-labeled; severity ranges from negligible to severe (40.7% negligible, 38.1% minor, 17.1% significant, 3.4% severe). Data come from GitHub issues, Hacker News, LessWrong, and X; labeled by an LLM. A subset is published; code and pipeline are open on GitHub (MIT) with CC BY 4.0 annotations. Quotes belong to authors; removal via issue.
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SpaceX is an American aerospace company founded by Elon Musk that develops rockets and spacecraft, advancing reusable rocket technology and commercial spaceflight.
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The euro banknotes are being redesigned to reflect Europe’s shared identity and values. A jury selected design proposals A–J from studios including Studio Joost Grootens, PunktFormStrich, Neue Gestaltung GmbH, Rudy Guedj & François Girard-Meunier, Myrsini Vardopoulou, Jan Robert Dünnweller, Rubio & del Amo with Cruz más Cruz, Atelier Goppel-Toperngpong, Isabelle Daëron and Ville Tietäväinen. The proposals are not final.
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Explains quines—programs that print their own source without introspection—using a self-copy machine analogy. Then it walks through building a Python quine: from print() to self-printing by inserting a copy of the source into its text, using literals, repr for escaping, and careful slicing. It covers common pitfalls (updating the literal, escaping quotes) and shows variations in JavaScript (self-printing via a text variable) and Excel/LibreOffice (SUBSTITUTE templates). It ends with a reusable recipe: craft a program template that takes a string, replaces a placeholder with its own literal, and prints the result.
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Artificial Analysis compares AI models across intelligence, speed, latency, price, and context window using Intelligence Index v4.1 (nine evaluations). Top intelligence: Claude Opus 5; fastest: Mercury 2; cheapest: Devstral 2 / North Mini Code (0.00/1M tokens); lowest latency: Gemini 2.5 Flash-Lite; largest context windows: Llama 4 Scout, Grok 4.20. It covers open weights, reasoning metrics (AA-Omniscience, AA-Briefcase Elo), and openness. Users can view detailed model pages and compare models with a selector.
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The paper presents SCN Global Flow Monitor, a simulation framework for global crude oil trade modeled as a fluid-stochastic supply-chain network with endogenous pricing and strategic trade rebalancing. It analyzes shock scenarios over 26 weeks (historical analog, severe disruption, extreme stress) using capacity-retained 30% and demand/supply elasticities of 0.10. Outputs include throughput changes, clearing price, downstream flow losses, and emergency stockpile drawdown. Stockpile depletion occurs in net-importer buffers; exporter buffers are elastic. No rationing policy; bypass infrastructure included. Based on UN Comtrade data and detailed in arXiv:2607.17491.
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Max/MSP externals suite covering essential studio gear. Includes Air EQ, Bloom EQ, Contour EQ, Focus EQ, Silk EQ, Glide Compressor, Level Compressor, Punch Compressor, Smooth Compressor, and Snap Compressor, with optional oversampling up to 8x. Core of Max for Live devices by Nyquist Limited. Build tested on macOS; Windows cross-compile via mingw-w64. Dependencies: CMake, min-devkit, r8brain-free-src, clang, llvm-mingw. Modified/ported from AirWindows and other DSP projects. GPL-3.0.
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Kimi K3 allegedly exploited the latest Redis server with a zero-day it discovered, finishing in 27 minutes using 32 agents. The post also notes Claude’s source code leaked via a map file in their npm registry, and includes reactions from others about the exploit and the leak.
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Simone Salis asks what if all advertising were illegal, a thought experiment arguing that banning paid and third-party ads would remove incentives for addictive digital content and the algorithmic bubbles fueling political and commercial manipulation. He contends platforms like Facebook, Google, Instagram, and TikTok would collapse as their current forms, along with clickbait and propaganda, lose their economic foundation. Advertising is not information but coercive persuasion—harassment, not free speech. Throughout history, society functioned without ads; the present ad-saturated era may someday be seen as barbaric.
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Open-source hardware project by Julia Desmazes: a 3-port 100 Mbps unmanaged Ethernet switch ASIC taped out on the Tapeout shuttle. Constrained to 24 pins (8 in, 8 out, 8 bidirectional) and on-chip memory, it uses no store-and-forward. It maintains a 4-entry address table with TTL aging (300 s) and a fixed replacement policy that evicts the oldest valid entry; writes refresh TTL and port. The ASIC interfaces with three LAN8720A RMII PHYs at 50 MHz, with timing constraints enforced by SDC. Part of the Coffee Shop family. Future: expand ports/entries, explore CAM, silicon bring-up in Nov 2026 (Round 2).
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Andon Labs releases Drone-Bench, a benchmark that measures how well AI models can write code to autonomously surveil an office with a low-cost drone. It covers five tasks—Reconstruct (3D map and obstacle slice), Localize, Navigate, Detect, and Follow—each scored against a human baseline and run in isolation to avoid error chaining. Ten runs per model show no one beats the Reconstruct baseline, leaving end-to-end success at 0%. Best submissions improve dramatically over their first attempts (e.g., Fable-5), but average runs lag best by six months. The team notes misuse risk and outlines future extensions, including end-to-end evaluation and harder benchmarks.
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Jeff Bezos sketches a cloud-powered, voice-controlled device in 2011 for $20. Hart leads the Alexa effort; Ivona and Evi acquisitions build Alexa’s voice and knowledge. The team wrestles with far-field speech vs. knowledge graphs; Rohit Prasad advocates deep learning. They underestimate data needs; Bezos pushes for a magical product. AMPED data-collection program uses Appen, decoy devices, and thousands of workers to gather massive speech data. By 2014 Echo launches modestly; Alexa’s smartness comes from massive data, helping Amazon outrun Google/Apple.
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Ben Houston describes Web3DSurvey, a low-cost system (C$3/mo) that reports real-world WebGL, WebGL2, and WebGPU support. It uses two Cloud Run services, a partitioned BigQuery store, and a transparent JSON cache. A tiny iframe collector probes browsers for capabilities and sends samples to a lightweight API that filters bots and writes to BigQuery in batches; five-day partitions with 120-day TTL. Reporting runs client-side from small SQL queries, with many small aggregations and JavaScript rollups. A 2-day TTL JSON cache reduces BigQuery load; cloud costs remain around CAD 3, even with 500k samples/month. Future improvements include typed schemas and migrations.
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Marimo announces the first PyCharm plugin, bringing reactive notebooks to PyCharm and JetBrains IDEs. You can add a marimo notebook to a project, import code, and run interactive cells without leaving the IDE. Notebooks are plain .py files identified by a marimo import and App declaration; they integrate with Git/VCS. A local marimo server starts on opening a notebook; the plugin handles ports and lifecycle and uses the project’s Python env by default (sandbox mode via uv available). You can pair with AI via marimo-pair, try via JetBrains Marketplace, and the project is open source on GitHub.
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Postgres LISTEN/NOTIFY is often deemed non-scalable due to a global exclusive lock during commit, which serializes stream writes and caps throughput. The authors optimize LISTEN/NOTIFY-backed streams by buffering notifications in memory and flushing them in a single batch transaction, reducing lock contention. Readers also poll as a fallback for undelivered notifications. Benchmarks show up to 60K stream writes per second with 15–100 ms latency on a single Postgres server, saturating CPU rather than contention. Code and quickstart available; DBOS promotes durable execution tooling.
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Cloudflare researchers examine the BGP ORIGIN attribute, which should not be modified after origination. Analyzing RIPE RIS/RouteViews data, they find 89.8% of routes use IGP, 3.5% EGP, 6.7% INCOMPLETE. They observe widespread ORIGIN rewriting: about 10% of direct peers modify ORIGIN, and ~70% of IPv4 and 67% of IPv6 AS_PATHs show ORIGIN reset to IGP. The manipulation is concentrated among top ASes (including some Tier-1s) and shifts traffic toward rewriters, altering routing decisions. They advocate deprecating or scrubbing ORIGIN and restarting IETF discussions.
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The article champions the “small” or “indie” web—the human-made, non-corporate Internet that predates ads and big platforms. It argues the web isn’t dying and traces the shift from ad-free origins to today’s ad glut. It offers practical ways to reclaim the web: host and maintain personal sites (Neocities, Porkbun for TLDs, Bear), run blogs, and build digital gardens; embrace decentralised services (Mastodon, PeerTube, Lemmy) and discoverability tools (RSS with PowRSS). It advocates a return to a simple, readable, user‑built web.
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