The universe seems to be as far as we know now physically infinite and homogeneous. That means all possible arrangements of matter exits.
There’s a couple assumptions being made here that allow for this hypothesis to be possible. We do not know if the universe is actually infinite, it’s just a possibility based on what we can currently observe (around 93 billion light years). Even if something is incalculably large, it’s still miniscule compared to the infinite that this hypothesis requires.
Secondly the universe is only homogeneous at a very large scale. The universe at a local scale is very diverse in its make-up, it’s only homogeneous at a scale of hundreds of millions of light years.
If we disregard these assumptions is it possible that there are near copies of our perceived realities in other places in the universe, maybe…but is it likely?
Most definitely. It’s assuming our current understanding is accurate, spacetime is flat and the universe is at a large scale homogeneous. As of now those are the main assumptions given what we know and what we can measure. Any stories we make about reality including science are at most our current best bet and nothing more. We can always learn something new that will rewrite anything we know currently. Like imagine we prove last Thursdayism is true.
There’s a couple assumptions being made here that allow for this hypothesis to be possible. We do not know if the universe is actually infinite, it’s just a possibility based on what we can currently observe (around 93 billion light years). Even if something is incalculably large, it’s still miniscule compared to the infinite that this hypothesis requires.
Secondly the universe is only homogeneous at a very large scale. The universe at a local scale is very diverse in its make-up, it’s only homogeneous at a scale of hundreds of millions of light years.
If we disregard these assumptions is it possible that there are near copies of our perceived realities in other places in the universe, maybe…but is it likely?
Most definitely. It’s assuming our current understanding is accurate, spacetime is flat and the universe is at a large scale homogeneous. As of now those are the main assumptions given what we know and what we can measure. Any stories we make about reality including science are at most our current best bet and nothing more. We can always learn something new that will rewrite anything we know currently. Like imagine we prove last Thursdayism is true.