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SIGNAL

Thursday, May 21, 2026

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signal --date=2026-05-21

Today's brief covers an extraordinary 24 hours in tech: OpenAI's model achieved what was thought impossible — autonomously disproving an 80-year-old math conjecture — while GitHub grappled with a 3,800-repo breach from a malicious VSCode extension. Intuit's 3,000-person layoff to fund AI agents signals a new phase of enterprise AI adoption, and MENA's startup ecosystem showed strength with $289M raised in May.

OpenAI model solves an 80-year-old math conjecture, GitHub breached via malicious VSCode extension, and Intuit cuts 3,000 jobs in AI pivot


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OpenAI Model Autonomously Disproves 80-Year-Old Erdős Geometry Conjecture

An internal OpenAI reasoning model has disproved the planar unit distance conjecture posed by Paul Erdős in 1946, producing a verified proof that provides an infinite family of constructions with polynomial improvement over the long-assumed optimal square grid. Fields Medalist Tim Gowers calls it 'a milestone in AI mathematics.'

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