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4 votes

Is the Cosmos a super set of the Universe and any hypothetical multiverse(s)?

"Cosmos" is the English cognate of the ancient Greek word which refers to the entirety of existence. It is equivalent to the Latin-derived word "universe;" the only difference between the two is the ...
Asher's user avatar
  • 436
4 votes

Is there any way to tell which way is the next universe?

Which direction is the next closest universe? Which direction to the nearest unicorn? How many universes can surround ours at a time? We don't know the shape of our universe. Whether it's ...
userLTK's user avatar
  • 24k
4 votes
Accepted

Which quantum reality will be seen in a far away galaxy

So, the presenter explains that two observers who are not moving relative to one another will agree on the meaning of "now". However if one observer is moving, then they will no longer agree, and ...
James K's user avatar
  • 122k
3 votes

How can cosmological bubble universes "collide" with each other?

If time started in our Universe at the Big Bang, then in what time dimension (outside of ours) do collisions between Universes occur? In inflationary cosmologies, time did not start at the Big Bang. ...
Steve Linton's user avatar
  • 10.3k
3 votes
Accepted

Is there any way to tell which way is the next universe?

There is no way to know, if any other "different Universe" exists. There is also a terminologic problem with it. Universe means, on latinic, something what "contains everything". If there is no way ...
peterh's user avatar
  • 3,161
3 votes
Accepted

Physical laws in other universes

First of all it has to be stated that it is difficult to have a scientific discussion about multiple universes. The problem with multiple universes is that it can be logically deducted from ...
MacUserT's user avatar
  • 889
2 votes

Potential paradox with the Big Rip and the Multiverse?

You have to take care of the kinds of size you are referring to, and sometimes also the type of infinity you get. This applies not just to multiverses but to a lot of other physical and mathematical ...
Anders Sandberg's user avatar
2 votes

Potential paradox with the Big Rip and the Multiverse?

I don't know whether this is a real paradox. Infinities are tricky :) For example, we don't have just one infinity. Also, our knowledge about the universe is too narrow too understand the system of ...
User123's user avatar
  • 2,879
2 votes
Accepted

Which quantum reality will be seen in a future Earth

All of them. If you sit on Earth then (in the many worlds interpretation) each quantum mechanical observation creates multiple universes, and there is a copy of "you" in each one. So if I were to ask,...
James K's user avatar
  • 122k
2 votes
Accepted

Is parallel universe possible

Multiple and parallel universes are a feature of a number of "theories", including most famously (and probably before string theory), the many worlds interpretation of quantum mechanics. The ...
ProfRob's user avatar
  • 152k

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