Ask an Atheist Where the Universe Came From
If you ask an atheist, "Where did the universe come from?" you might get any number of different answers.
One atheist might say, "It's always been there," which of course is not possible because the universe has only a finite amount of usable energy. The law of conservation of energy and entropy, you know. The Big Bang? Nope, that's out too.
Another atheist might say, "We don't know, but just because we don't know doesn't mean it was God. We have to keep looking."
Now this answer leads to a much more interesting discussion. What the atheist here is saying is that he believes the answer to the question has not yet been discovered. That means the atheist is comfortable with pretty much eliminating 6,000 years of human knowledge from the possibility of holding the answer.
The atheist is not at all interested in the answer. He just wants to hold to his belief that there is no God, and the easiest way to do this is to claim ignorance of the origin of the universe while simultaneously claiming that nobody else knows the answer either!
Read that again. The atheist positively claims that no one knows the origin of the universe. In saying this, he assumes absolute omniscience over the entirety of humanity, both past and present. He boldly admonishes all theists that they do not know the answer either! He makes himself the arbiter of what is and is not known. In essence, the atheist makes himself out to be greater than God.