Atheists...Just a quick proof style question?

What is the proof for not believing in something? lol. I don't think you understand precisely what atheism is. You don't "believe" in atheism. It's the default. If there is no proof for something, you DON'T believe it right? Like if someone said "hey, there's aliens orbiting the earth right now!" THEY have to prove their statement. Meanwhile, you stay with the default...disbelief. Get it?