Given a shower and an infinite lifespan (no death from aging), you will eventually trip and die in the shower. Given enough time and a set of possible events, a

Given a shower and an infinite lifespan (no death from aging), you will eventually trip and die in the shower. Given enough time and a set of possible events, all of those events will unfold eventually. So I don't see what's so damning about the inevitable cancer, since you seem to hint at that we might get the technology to easily detect them in time eventually.