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Let's build a universe. To describe this universe, we need a metric. I won't go into details about the precise definition - for more, see Wikipedia, as well as Physics and Mathematics. In this case, we need a metric of dimension (4 + 2) (i.e. four dimensions of space and two of time). This will be represented in a 6-by-6 matrix: $$g=\begin{bmatrix} g_{...


10

Ok. So I'm going to use a shortcut here and use most of our physics, making only minor changes that I think could result in what you want. I'm also going to ignore most of the required 4D differences with the power of handwavium since I don't think I'm up to designing a universe from scratch. So other than the new dimensions, this universe only has three ...


4

I'm adding this as a separate answer because it takes an entirely new approach. I've thought of two new possibilities that might offer something closer to the question's current direction. I'm not sure how plausible either is if you dig down into the gritty details, but I think they'll work for your purposes. The Universe Star Imagine a universe nearly ...


1

My own take on this is that the universe starts out pretty much empty. We then apply the following rules: Vacuum randomly and spontaneously generates elementary particles that can combine to form atoms, though the presence of matter suppresses this. Vacuum repels matter. Matter does not attract other matter, instead suppressing the vacuum repulsion (...


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