That's exactly why it's a faith and not a science. Some things in the Bible really surpasses all the things we can understand with our logic. And still I believe it's the truth. Because the Bible tells me it's the truth. Now for every rational thinking human being, that's insane. People don't believe something, until they saw it with their own eyes, or can rationally explain it. But if you believe something because it's said, you're a believer.