I guess you are confusing our universe with parallel worlds. It is very doubtful that there is a planet with the same geography and processes of evolution that completely replicated ours (even giving that evolution on Earth is the only way for life to emerge) so that there are ET humans who named one of their countries USA. So it is obvious that no one up there could share completely same experiences with us
I guess you are confusing our universe with parallel worlds. It is very doubtful that there is a planet with the same geography and processes of evolution that completely replicated ours (even giving that evolution on Earth is the only way for life to emerge) so that there are ET humans who named one of their countries USA. So it is obvious that no one up there could share completely same experiences with us
If the many-worlds interpretation of quantum physics is true then there are lots of universes really, really similar to ours.
Yes, but the Fermi paradox and Great Filter operate within a given branch of the MWI multiverse.