I think it is hard because of https://en.wikipedia.org/wiki/No_free_lunch_theorem https://en.wikipedia.org/wiki/No_free_lunch_theorem That follows there is no

I think it is hard because of https://en.wikipedia.org/wiki/No_free_lunch_theorem https://en.wikipedia.org/wiki/No_free_lunch_theorem That follows there is no single "good" algorithm, and you need to have and exploit domain knowledge in order to succeed.