Nobody knows, and I suspect nobody can know, the “true structure of reality.” But there is a current meme that claims there is a “multiverse” containing all possibilities coexistent with mine.
I have as much right as anyone to disagree.
My view of such a universe is less that of all possibilities in an infinitely dimensional block then a braided stream. Such waterways constantly diverge slightly and then not much later reform in generally the same direction. With proper perspective, they form a single current even though any given water molecule may go anywhere at any time.
And really, beyond flights of fancy, the imponderable question is time itself. We are unable to get a clue to its real nature. Unless we could somehow do so _ which I doubt _ we can never find “true reality”.
But all these exercises are really more about fable and the myths of meaning. It may be comforting to think that somewhere else things might have turned out differently or better. Mostly that gives us a better acceptance of our own path, or at least a comfort that it has not been worse.
Pursuit of the multiverse is, as most such quests, a modern equivalent of tilting at windmills, or daydreaming in sunny meadows.
HuntingtonHarborThoughts 