it so easy after all it just they managed to solve other problems or maybe it's just psychological maybe we just are wired to think about algorithms and some you know more easily than lower bounds but there's not so much different between them in the end so here's here's just that my vague attempt to draw some parallel here so a typical resultant album design says here is an algorithm a that solves some problem on all possible instances of the problem now it's actually amazing how many statements of this form hold but