On the one hand, atheism is irrational, seeking excuses to justify its bigotry against religious people (as demonstrated in this comments section). On the other hand, as Kant demonstrated over 200 years ago, no logical argument can prove the existence of God and to even try is an irrational waste of time. On the other other hand, when we get past the artificial dichotomy of theist-atheist, we can begin to see what is present in the universe.