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Exotic crystals inside trinitite glass & Opting out of data brokers - Hacker News (May 18, 2026)

Exotic crystals inside trinitite glass & Opting out of data brokers - Hacker News (May 18, 2026)

Published 3 days, 8 hours ago
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Today's topics:

Exotic crystals inside trinitite glass - Scientists found a new clathrate crystal phase inside trinitite from the Trinity nuclear test, showing how extreme, brief events can create exotic materials under nonequilibrium conditions.

Opting out of data brokers - The open-source macOS tool auto-identity-remove automates data-broker opt-outs with scheduled rechecks, local-only state, and optional CAPTCHA handling—reducing long-term personal data exposure.

Capability-based secure OS history - A 1979 SRI paper on PSOS highlights formal methods and capability-based access control, emphasizing a small trusted base and verifiable security through modular “type manager” design.

Image-to-CAD with editable history - GenCAD generates not just a 3D CAD model but the full parametric command history from an image, making AI-generated geometry more editable and useful for real engineering workflows.

Student backlash over AI hype - Eric Schmidt being booed at a graduation underscores growing public unease about AI, jobs, and platform harms—signaling a credibility gap for tech leaders’ optimism.

Rethinking the hard problem - Carlo Rovelli argues the “hard problem of consciousness” is a framing error rooted in dualism, reframing consciousness as a scientific, natural phenomenon described at different levels.

Debian on locked Android tablets - The rkdebian project boots Debian 12 from SD on a Rockchip-based tablet without touching Android, expanding low-cost hardware reuse and hands-on Linux experimentation.

Voyager legacy software myth check - A Voyager retrospective says the real risk isn’t mystical 1970s code, but lost documentation and institutional memory—critical as the mission runs on dwindling power and staffing.

Searchable astronaut Q&A archive - The “Ask an Astronaut” site organizes thousands of ISS interview questions into a searchable archive, making firsthand spaceflight explanations easier for educators and the curious.



-Open-Source macOS Tool Automates Monthly Data Broker Opt-Outs Across Hundreds of Sites
-SRI’s PSOS Paper Outlines a Formally Designed Capability-Based Secure Operating System
-DOGMA 25 Launches New Manifesto and Ruleset for Low-Tech, Human-Centered Filmmaking
-GenCAD Generates Editable Parametric CAD Programs from Images
-Eric Schmidt Booed at University of Arizona Commencement After AI Remarks
-Carlo Rovelli: The ‘Hard Problem’ of Consciousness Is a
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