It appears that Anthropic has released a proof as well (same bounds), but with a different approach? https://drive.google.com/drive/u/0/folders/1uaWnPqWkXy1sjfsD...
> Our result is purely asymptotic: for arbitrary 3-CNF formulas with m = 5n clauses, the bound we prove does not improve on the 2n of exhaustive search unless n > 10^10000,
So their algorithm beats standard algorithms only when you have more variables than there are atoms in the universe (10^80). Even if every atom contained a whole universe, and each atom in each universe itself contained a whole universe, iterated 100 times, your still not there.