What's the fun of being a god and NOT being omnipotent? They'd have my resignation soon enough...
The stone God made but cannot move has been worn down to a pebble, I think, due to overuse. In my opinion, it's an example of playing with words, not of demonstrating anything worthwhile. But the reductio ad absurdum I sketched still holds, even if omnipotence is reduced to the logically possible. So, I think there IS something to be gained by contemplating omnipotence.
Furthermore, to say that the human mind in not designed for concepts like infinity, is to reverse things. I think that ideas like those to do with infinity are the
product of the mind, rather than something out there which defies our attempts to understand it.
Cheers.