> we still dont know the limits of what quantum computers can do. Well, we don't know the limits of what classical computers can do too (P!=NP is not proven).

> we still dont know the limits of what quantum computers can do. Well, we don't know the limits of what classical computers can do too (P!=NP is not proven). While not directly related to P!=NP, historical claims of quantum superiority were occasionally taken down by finding an efficient classical algorithm.