New best story on Hacker News: A visual proof that a^2 – b^2 = (a + b)(a – b)

A visual proof that a^2 – b^2 = (a + b)(a – b)
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New best story on News: ChatControl: EU wants to scan all private messages, even in encrypted apps

ChatControl: EU wants to scan all private messages, even in encrypted apps 942 by Metalhearf | 515 comments on News.