As an atheist, I cannot state with 100% certainty that there are no gods, but I certainly do not believe for a moment that there are. When I look at the world, and how it works, I see absolutely no evidence for the active involvement of anything other than nature herself. (I assume here that we are part of nature, and part of our nature is to be careless in our treatment of our world, and others in it.)
So the only reason that I can think of to suppose the existence of a god or gods, is the existence of this world itself, which is admittedly difficult to grasp, and which nobody is yet truly certain of. But to suppose that before this universe existed there were a god or gods with the power, imagination and will to go ahead and create it out of nothing. That supposes something much, much harder to grasp than that something, in some form or other, has always existed, and local physical laws can do the rest, given enough time.
Thus, it is cleaner to suppose a big bang, possibly in a never-beginning, never-ending, always changing multiverse, than to believe in special intelligences bringing everything into existence. Occam's Razor tells me a natural universe is the right answer.
So the only reason that I can think of to suppose the existence of a god or gods, is the existence of this world itself, which is admittedly difficult to grasp, and which nobody is yet truly certain of. But to suppose that before this universe existed there were a god or gods with the power, imagination and will to go ahead and create it out of nothing. That supposes something much, much harder to grasp than that something, in some form or other, has always existed, and local physical laws can do the rest, given enough time.
Thus, it is cleaner to suppose a big bang, possibly in a never-beginning, never-ending, always changing multiverse, than to believe in special intelligences bringing everything into existence. Occam's Razor tells me a natural universe is the right answer.