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What Anthropic’s IPO prospectus actually says

Anthropic told prospective investors in an unpublished IPO prospectus that advanced AI could pose “catastrophic or existential risks to humanity,” according to Reuters and the Financial Times, both of which reviewed the filing ahead of a potential $2 trillion (roughly £1.5 trillion) flotation. The Guardian broke the story on September 29, 2026, packaging the Anthropic…

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Anthropic Warns of AI Existential Risk in $2T IPO [2026]

Anthropic told prospective investors in an unpublished IPO prospectus that advanced AI could pose “catastrophic or existential risks to humanity,” according to Reuters and the Financial Times, both of which reviewed the filing ahead of a potential $2 trillion (roughly £1.5 trillion) flotation. The Guardian broke the story on September 29, 2026, packaging the Anthropic…

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How to Set Up DOSBox Staging: Play DOS Games in 13 Steps [2026]

DOSBox Staging just crossed 1.8k stars on GitHub and ships a fresh Git build almost daily — the latest as of September 29, 2026 landed the same morning this guide was written. The project’s stable line still sits at version 0.83.0, but the nightly branch (heading toward 0.84.0) is where most of the useful fixes…

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Sonnet 5.5 vs GPT-6 Luna vs Gemini 3.8: 20x Gap [2026]

Three new AI models shipped inside a 26-day window this September, and none of them are the flagship everyone expected to write about. Claude Sonnet 5.5 landed on September 28, 2026. GPT-6 Luna arrived alongside its pricier sibling Sol on September 22. Gemini 3.8 Flash beat both of them out the door on September 2.…

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start.gg vs Challonge vs Battlefy: 6% Fee vs $12 [2026]

Every weekend, thousands of amateur tournaments get organized on top of three pieces of software most players never think about: start.gg, Challonge, and Battlefy. A local fighting game meetup, a Discord Valorant ladder, a university Rocket League league, and even portions of officially sanctioned esports circuits all run their brackets through one of these three…

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The Communication Bottleneck: A Round-Trip Study of Tree-Structured Expression Serialization in Language Models

When language models reason in chain-of-thought or exchange free-text intermediates, they serialize structured information into natural language. How much tree-structured compositional content survives this bottleneck? We propose a round-trip protocol that answers this question empirically for tree-structured expressions. A generator converts a procedurally generated arithmetic expression into a word problem, a separate extractor recovers the…

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