Hello, sorry to bother you, but I have several questions. I hope it's not too much trouble (sorry again).
1. How can I make a space/dimension that contains universes (which have their own spacetime) a 4-dimensional structure or an insignificant 5-D (I heard that the separation of universes is insignificant 5-D; I don't know if this could already be of that type)?
2. Could a time axis be disqualifying for this dimension/space?
3. Is calling this space/dimension a universe enough to have a universe-sized dimension?
Also, this space makes universes appear as spheres/bubbles from the perspective of people who are there in that space nearby. A colleague did the calculation, and it turned out that the space is:
The diameter of the observable universe is approximately 93 billion light-years. For it to appear as a small bubble, an angular size of about 1° (0.017 radians) is sufficient.
L ≈ (93e+9 ly) / 0.017
L ≈ 5.5e+12 ly
Approximately 59 times the size of the observable universe.
Is this sufficient?
4. This deals with something different from the previous ones. It's said that a different dimension or extradimensional space (depending on the translation) is used for teleportation, which is the same one used to summon beings from other worlds (universes). I don't think it qualifies as a 4-dimensional space, but I still wanted to know your opinion on this, if possible.
Apologies again, and thank you.

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