I have a question, not about sethoflago's question but about the Big Bang theory in general. How can anyone scientifically believe in the Big Bang, or evolution, for that matter? For something to be believed by the scientist community, doesn't it have to be repeatedly observed and the theory tested, according to the scientific method. Evolution has never been seen, observed, or recorded by humans, so how can we scientifically believe in it? Same thing with the Big Bang, but I guess not as much so since the beginning of the universe only happens once, and we can't really observe it.