Is Science everything?

Yes, that will also prove that God himself exist, by introducing himself. He hasn't done that since.... well the beginning of written history so the chance of him actually doing that? After all the very veil of mystery to his existence brings hopes to some yet curiosity to others and even condemnations among some.

I think you missed the point. Hypothetically, if God exists, and then introduces Himself, then goes on to tell us that He is the only God, is that "scientific" evidence or are there other Gods and God is merely lying?