An argument against reincarnation:
"There is a good argument against the idea of reincarnation. If someone says that I was at a scene of a crime and I have no memory of it, I will challenge them to give me some physical evidence that I was there. We have no memory of being in a previous life. But if someone says that we were in a previous life, by implication we may have been at the scene of a crime in a past life. We should ask for some physical evidence that we were in such a past life. If such evidence is not forthcoming, and it isn't, then we should deny that we were in a past life. "