Imagine a being that could replicate every miracle in the Book. That spoke to you in your head and showed you that it knew everything you had ever done, every thought, good and bad. Spin that out as far as you wish.
If such a being said that it was God, you would be almost forced to Believe. For a True Christian, it would be the Second Coming, pure and simple.
A sufficiently advanced technology would have no problem replicating the entire series of "The Left Behind" or whatever it's called.
Trust me, you'd _know_ it was God.
Even if it was from Tau Ceti.
Thank you for your words. It does give me hope that the end is coming upon us. The Bible tells us about a man of sin who will duplicate the works of God, and that the people would be deceived into thinking that he is God. I can see that many people will be foolish enough to follow the Anti-Christ.
I was thinking about that the other night-- walking on water, raising the dead, the resurrection...
Why didn't he just write "Jesus was here", in bold type, across the face of the moon? I think that would of done it.
If you're going to do miracles, go for something big and indisputable I say.