I'm writing a philosophy essay and surfing around the internet and talking to my teacher has led me to beleive that some poeple beleive that there is some inherent inconsistency in the idea of an infinite regression of causes. I can not think of anything concrete, so does anyone have any ideas as to what inconsistencies there could possibly be in this so that I can decide if I agree or disagree with this? I highly doubt there is any knock down argument either way, because that would mean that all people who have put considerable thought into it would believe in God (if there is not an infinite regression of causes then there must be an ultimate cause of everything, ie God by definition) but this is clearly not the case since many philosophers are atheists. So since it can not be definately and clearly proven either way, any ideas at all would be very helpful. Thanks. PS please don't turn this into a thread arguing the existence of God, that can get carried away to easily, let's keep it to the discussion of inconsistencies in the idea of infinite regress of causes.