What existed before the big bang? Nobody knows. What caused the big bang? Nobody knows. How did life form from dumb stuff? Nobody knows. People only have theories. The existence of probable realities is one theory of how the universe explores what might have happened if things had gone differently.
When you look around you, things seem pretty finite. They have borders and are separated by space. But as you look further in or further out, these boundaries are no longer so clear. Where is the end of the universe? Nobody knows. What is the smallest subatomic bit? Nobody knows. Does it even make sense for a universe to be finite? Some think not.
Some think that maybe the universe has n dimensions. Where n is some pre-defined number. But if n is anything other than infinity, then the universe is finite. It has a beginning and an end, or a limited number of dimensions. If n=infinity, then our universe is infinite and in an infinite universe every probability is explored. In such a universe, there are an unlimited number of probable universes, each with an unlimited number of dimensions and possible outcomes. It just goes on and on with no end and no beginning. Such a universe is a multiverse, or an infiniverse. And such an infiniverse has some good philosophical implications for our own personal freedom.
Let’s say you just fucked something up. Somewhere else, there is an exact copy of you doing the right thing. For every world at war there is a world at peace. For every version of you that is unhappy, there is a happy person exploring all the things you wish you were doing right now. OK, so you might want to go find that happy version of you and kick his ass, but in a world of infinite probabilities you can also invoke those good things in your own life and leave probable unhappiness to some other version of you.
An infiniverse suggests a fluidity that previously seemed incomprehensible. It suggests that the sky is the limit in terms of choice. There is always another probability to explore, another outcome that can be experienced. Nobody is stuck where they are. The question is, how do we get from this probable reality to another? How do we discover where the path not taken leads?
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