Galaxy, while you are trying to demonstrate your doubt in ursus's credentials, you also demonstrate how pathetic one might get. Good luck to you with your NDEs.
Anway, Ursus, you set the regret at the point of no return. There's no turning back in the hereafter. I would suggest another question.
What if the ark of covenant was found, with a much older Gospel in it, maybe dictated by Jesus himself, and that the Gospel is much different than the current Christian theology, more like strict monotheism? What would you Christians reactions be? Just another mind experiment! (Maybe the reapperance of the Messiah is such a thing!)