One of the current theories in astronomy is that the universe is ever expanding (and the expansion speed is increasing at that). This will eventually lead to a heat death of the universe (i.e., Big Freeze). In such a scenario I cannot imagine how consciousness can arise / propagate.

A contrary theory is that that the universe would reach a point where it would bounce back and reverse this expansion process (i.e., it will contract). In such a scenario the universe would have infinite cycles of expansion and contraction (assuming infinite time) leading to infinite many exact states of the universe (in this infinite time line).

Another theory suggests that there are infinite many parallel universes to ours. This should also imply that at any given moment in time there are infinite many states of parallel universes that are exactly the same as the state of our universe right now.

An interested aspect of the parallel universe theory and its implications for consciousness is that at any given time we would be “sharing” consciousness with infinite many other beings.

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