Well, from a strictly logical standpoint, the fact alone that we came to be in the first place is an argument for reincarnation. Because if life happened once, than the precedent is set and so there is a chance that it could happen again, and also that it might have happened before. It is not a proof, but it is a reason to consider reincarnation as a possibility. We have cyccles of life in nature. So maybe there is some bigger cycle. There is no way for telling how would that work though. Without being able to apply some science, it is all guesswork from here. Altough I sometimes wish that reincarnatian and the idea of karma was as popular as other religions. If people believed they could return here some day reincarnated in a poor family living in a slum, there's a chance they would be working to make the world a better place for everybody and not just for the rich. Just a thought :)