> Because evolution doesn't care about us beyond reproduction age (after which is when most cancers occur, especially considering that historically that age was

> Because evolution doesn't care about us beyond reproduction age (after which is when most cancers occur, especially considering that historically that age was between say 16 and 35). True. If we can find a drug or gene therapy that extends the reproductive age of humans, evolution will take care of all diseases in a few million years, give or take.