can steer yourself away from things which MP hard and things which are more like P but lower bounds have actually been extremely useful in other areas such as machine learning theory useful in in learning functions for which you know lower bounds for those kinds of functions for cryptography as as demonstrated with RSA so you sort of need lower bounds just to get off the ground you need to be able to say that you know I have have concocted a problem efficiently but you you can't crack it you can't you know turn around and solve