@Setanta,
Quote:I consider that a dubious claim
Well, considering that the three major religions that claim this omnipotent god all adhere to the old testament as the literal word of god, and as Bishop Usher has shown, according to the OT that the world was created 6000 years ago, and we can prove the world is in excess of 4.5 BILLION years old, that along with the below more than suffices as proof that those who believe this twaddle are deluded.
Now, if you want absolute veriviable repeatable emperical evidence that an omnipotent being does not exist, I refer you to Heisenbergs Uncertainty Principle.