It's estimated there are 10^80 atoms [1] in the visible universe, so 2^256 is definitely a huge number. I didn't realize 256 bit brute force was nigh feasible

It's estimated there are 10^80 atoms [1] in the visible universe, so 2^256 is definitely a huge number. I didn't realize 256 bit brute force was nigh feasible with only a solar system. I'm a bit surprised the quantum algorithm only gives a polynomial speedup. [1] https://en.wikipedia.org/wiki/Observable_universe#Matter_content https://en.wikipedia.org/wiki/Observable_universe#Matter_con...