AI Summarized Hacker News
Front-page articles summarized hourly.
Gödel showed some math is true but unprovable. Zero-knowledge proofs let a party prove a statement without revealing the solution; noninteractive ZK was long thought impossible (Goldwasser–Micali–Rackoff; Goldreich–Oren). MIT graduate student Rahul Ilango reframes this with proof complexity: define "effective" zero knowledge by adding a Gödel-like unprovable assumption that math is consistent. If that assumption holds, a noninteractive zero-knowledge proof exists; if false, mathematics could be inconsistent. The idea links proof complexity with cryptography and could enable new cryptographic constructions beyond standard assumptions.
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An experiment to host a tiny website on an 8-bit AVR64DD32. With 8 KB RAM, 64 KB flash, and 24 MHz, Ethernet via 10BASE-T is impractical; instead the author uses SLIP over a serial link to an Internet-facing Linux box. They implement a simple packet flow and a hardcoded HTTP response, avoiding full TCP/IP. To make the page publicly accessible, they proxy /mcu requests through a VPS using WireGuard, so the MCU itself isn't directly reachable. The result is possible but quirky and impractical for a real server, yet shows microcontrollers can host tiny web content.
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After Fisker filed for Chapter 11 in June 2024, about 11,000 Ocean owners faced dead software, lost updates, and vanished warranties. Instead of giving up, the Fisker Owners Association (FOA) grew to ~4,000 members who reverse-engineered the car’s software, mapped CAN buses, and built open-source tools on GitHub, creating a volunteer, open-source car ecosystem. They secured recalls, parts, and insurance, and ran a Europe-wide Flying Doctors repair network. Key projects include a Home Assistant interface to Fisker’s cloud API and CAN-DTC tooling. The saga highlights the need for software escrow, open data, and repair rights to prevent orphaned EVs.
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The piece argues that mapping a web of relationships onto a hierarchical tree is a pervasive problem—the 'tree mapping' problem. While spaces are naturally hierarchical, ideas form webs that resist strict trees. Through domains like file systems, code repositories, writing, architecture, biology, and mathematics, it shows how forced tree mappings distort connections (trees vs semilattices, by-project vs by-language, bundles vs loose organization). It cites Christopher Alexander’s city critique and taxonomy pitfalls. The takeaway: be intentional about how you organize, choosing a structure suited to the web and asking what is being flattened and why, rather than defaulting to trees.
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A redesign of a voltmeter clock using three cheap 90° panel voltmeters instead of a traditional dial. The author mocked the design in 3D, printed decals, and reworked the hour (0–12) and minute/second (00–60) scales to enable continuous motion. The front/back are CNC’d; a wooden curved side is formed by bending with internal notches. An AVR128DB28 MCU (8 MHz) drives the meters with fast digital pulses (no DACs); a 10 Hz timer computes duty cycles and two pushbuttons set the time.
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Content-Defined Chunking (CDC) enables remote caching to reuse bytes instead of whole outputs. BuildBuddy splits large files into chunks via a rolling hash; when inputs change only missing chunks are uploaded, reusing existing chunks. Benchmarks show Bazel 8.7/9.1+ with --experimental_remote_cache_chunking delivering ~40% less data uploaded and ~40% smaller disk cache; CDC deduplicated ~85% of written bytes for eligible blobs, skipping hundreds of TiB of duplicate writes over two weeks. Implementation spans SplitBlob/SpliceBlob APIs, Bazel’s combined cache, and BuildBuddy server/executors; opt in on the client.
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An experiment to make money from Algora bounties using Claude in an automated loop. The plan: discover bounties, pick small issues, clone, fix, run tests, human review, and cap at $20 tokens. The author built scout.py to scan 60–80 open bounty issues, tracking dollars, attempts, linked PRs, and days since last comment; state saved in state/scout.json. Across scans, issues clustered into three buckets: spam ($1), saturated ($50–$500 with many attempts/PRs), or assigned but untouched. No ripe candidates found; the public bounty market is driven by agent speed. Recommend private programs and more time; costs outweigh earnings.
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HybridLogic launches MCP Server for their main tool. Users hit a 401 Unauthorized when opening mcp.acme.com/mcp in a browser, causing support tickets. A hacky fix serves an HTML page for GET /mcp when the Accept header includes text/html (not JSON/SSE), guiding users to add MCP to their client. Tickets drop and onboarding improves. Post by Luke Lanchester, May 16, 2026.
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Benjamin Feldman’s tutorial builds a simplified, display-only 3D Gaussian Splatting (3DGS) renderer from scratch in ~1000 lines of C++/OpenGL/WebGPU. It loads a scene of Gaussian splats (centroid, scale, rotation, opacity, spherical-harmonics color), then renders by projecting 3D Gaussians to 2D distributions and drawing screen-space quads that approximate the 2D density. Core ideas: represent splats as Gaussian N(μ,Σ) with Σ=RS(RS)^T, transform to eye space, linearize perspective with a Jacobian to obtain Σ2D, build a 2D bounding quad from eigenvalues, and shade with SH colors and a Gaussian falloff. Splats are sorted back-to-front for blending. Code on GitHub.
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PART Initiative designs low-cost radio telescopes and open software for rural schools, with installation guides and RTL-SDR data workflows. Team members Narayan Dwan-Holland, Aliana He, Kevin Fang, Emma Enyu Zhang and Yanfu Fan (Narrabundah College, ACT) aim to build 25 telescopes under $500 capable of 21 cm hydrogen-line observations. The setup uses a commercial weather satellite dish, a conductive plastic base, and a signal chain with LNAs, filters, SDR, and a motor. They will distribute the units to rural schools to narrow the urban–rural STEM gap, with support from Science Mentors ACT.
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Recreation of the 1956 IPL-I Logic Theorist prover by dmoews. The project implements the Logic Theory Machine, which aimed to prove theorems in propositional logic using Principia Mathematica axioms, via heuristic methods. It traces history from IPL-I pseudocode to IPL-II on JOHNNIAC (1956), with later IPL-V development. The Python-based tools include logic.py (IPL-I abstract-machine interpreter), run_logic.py (driver to test theorems), and analyze_output.py (extract proofs). The repo provides IPL-I source, transcription, axioms, theorems, tests, and references.
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Halt and Catch Fire (HCF) is a humorous term for machine-code that halts a CPU. It predates the show, rooted in 1970s–80s hardware quirks. On the Motorola 6800, certain undocumented opcodes can make the program counter race through memory while the CPU stops behaving, requiring a reset to recover. The IBM System/360 anecdote about an illegal opcode causing overheating, and the Pentium F00F bug, are part of the lore. The idea circulated via Gerry Wheeler’s 1977 BYTE piece and other writings, becoming a catch-all for illegal/undocumented opcodes, hangs, or bugs, not just literal fires.
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HTTP 405 Not Allowed error from a Varnish cache server, with detail code 54113 and cache reference cache-bur-kbur8200155-BUR.
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Argues that TESCREAL—Transhumanism, Extropianism, Singularitarianism, Cosmism, Rationalism, Effective Altruism, Longtermism—drives Silicon Valley toward technofascism, claiming long-term future justifies sidelining democracy. It traces Peter Thiel’s funding of Curtis Yarvin (Mencius Moldbug) and other moves to a broader elite project against liberal norms. Marc Andreessen’s Techno-Optimist Manifesto and neoreactionary thinkers like Nick Land anchor a program favoring unelected governance. Real-world amplification in Brazil and India shows platforms shaping politics and eroding democratic accountability.
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Japan’s bear problem is outpacing a quirky defense: handcrafted Monster Wolf robot scarecrows. Each about $4,000 unit from Ohta has batteries, solar panels, sensors and speakers with 50+ clips; demand far exceeds supply, with two- to three-month waits. Bear encounters are rising as habitats shrink and populations age. In 2025, Japan culled a record number of bears and logged thousands of sightings. Plans for upgraded versions—wheels and handheld models—are in the works, but farmers still rely on these deterrents and government bear-safety tips.
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