@freemo
Not an expert, did find this: "Contrary to myth, Michelangelo did not paint on his back, but on a platform of his own devising that extended over half the area of the chapel and allowed him to stand upright."
@freemo That article continues on to say that it was moved half way through the work to continue on the other half. The "mooning the pope" I wonder about. Seems suspect that it was meant to be so offensive yet nobody noticed it for centuries, and it is in a gigantic painting with tons of nudity. Was it just part of the art or was it trolling? Important mystery we may never know the answer to.
@freemo One thing's for sure: God is not mooning anyone. He's the one on the right.
@SecondJon I agree, I am skeptical too but it seems valid. The mooning does seem kinda out of place.