7/29/2026 at 7:20:51 PM
At least 3 times a week, someone on the r/Collatz sub-reddit says: "I came up with a proof for Collatz and had ChatGPT/Claude verify it and it thinks I'm a genius."It's so common, the community barely comments on the absurdity of these posts any more.
by jones1618
7/29/2026 at 7:59:20 PM
This was a bit different, in that Lean was involved. That's more concerning.(I'm told this actually wasn't found by looking for a proof for Collatz, just that Collatz was used to exhibit the bug, once found.)
by pfdietz