But the question of just what "Mormons" or "Christians" or "Jews" or "Muslims" believe is also complicated by the fact that across time, you won't always find people believing what their co-religionists claimed to believe centuries ago.
Of course, this is THE assumption of all assumptions: That you can have a "heaven" minus the eternal presence of Heavenly Father...which is exactly the faulty assumption of Mormonism re: their descriptions of the alleged existence of the "terrestrial" and "telestial" kingdoms...
(SORRY...but the very presence of Heavenly Father IS heaven...Lds say that the middle kingdom will at least have the presence of Jesus Christ...but if the presence of Jesus Christ is heaven, then earth was "heaven" for the 33 years Jesus was here)
But the question of just what "Mormons" or "Christians" or "Jews" or "Muslims" believe is also complicated by the fact that across time, you won't always find people believing what their co-religionists claimed to believe centuries ago.
Of course, but if we are to define the reality of heaven by what a given body of religionists believe at a given time -- that a "democratic vote" of acceptance or rejection of beliefs somehow trumps God's revealed revelation, then we're talking about man-made "religion" from the bottom-up; not God-revealed covenants & revelations from the top-down.