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With a big hole in the middle?
No, a singularity, thus a very small hole.
Compressed energy, it's total mass exactly equal to that of all the mass outside of the hole.
What's outside the edges - if the universe isn't EVERYTHING then what's around the universe?
No idea to be honest. Either there is no "outside" so to speak, just as there is no before and after. Or perhaps other universes. Or something I haven't thought of. If I had to swing one way or the other, I'd say there is no outside, or if there is, just total emptiness that we can never interact with.
Given the universe is expanding there must be something outside it but does that mean the universe is still everything?
The observable universe is explanding. We then make the assumption this means the universe is expanding. But Newton's thrid law (I think) says every action has an equal and opposite reaction. So if we see the universe is exanding, there must be a region we are yet to discover where the universe is contracting. The torus model supports this, and it's the core reason I subscribe to the torus model, it allows for expansion AND contraction AND equilibrium. We are just located in the expanding region of the universe, and it's very large indeed.
Could there be more than one universe?
Possibly. I get confused when I start thinking about beyond our own universe. If another universe exists, and we can interact with it, then we both belong to the same larger universe. And if we can't interact with it, for all intents and purposes, it doesn't exist, since we can never know it's there.
Does the space outside of the universe "exist"?
See last answer.
Is the space outside the universe still part of the universe seeing as the universe is everything, and if it is then the universe can't be expanding right?
The universe isn't necessarily everything, it's just everything under the gravitational influence of the centre, it's everything that makes up mass equal to the centre. Anything beyond belongs to another universe, or at least another region of a larger universe. In that event, the universe isn't necessarily torus shaped, just our region.
How many different life forms do you think there are out there?
More than we can comprehend. Billions per star.
Do you think that on the other side of the universe things are different? Like no gravity, no atoms, etc. Or is everything the same throughout the universe?
Gravity exists throughout the universe, due to the sheer mass of the centre. There is no escape. Further out from the centre, gravity is weaker, but never negligable. In the contracting region of the universe, maybe time goes backwards, maybe positive is negative, I obv have no idea, but that doesn't stop me thinking about it!
I've read up quite a lot about this. Some scholars of the torus shaped universe assert that there are only two forces at work in the universe... electromagnetism and gravitation. EM is expansion of energy, gravity contraction of energy. The other "forces" are merely different aspects of EM, the same force working under different conditions. I'm not going to pretend I understand what the fuck that means, but it interests me nonetheless.
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