Re: The only universal quality of "God".
It's clear that God must have some cognitive abilities, some neurological organization. First, He created man in His own image. Second, He has put things together to appeal to Man's emotions.
Clearly to have the qualities Man attributes to God there is more to God than space, mass and energy.
And since those qualities exist only in the minds of Men, when those minds disappear so do the qualities. As has happened to countless Gods ever since Men and his societies have lived and died.