I don’t really know what I think about whether there are extra dimensions. I think it depends what type of dimension we’re talking about- I think in Maths you can have more than the four dimensions in order to do some very complicated equations. In reality I suppose it depends if we’re talking about multiple universes all co-existing, or parallel universes or something else entirely! There are so many mysteries about our Universe- how big is it? What was happening just before the big bang? Are there other universes…? Almost anything is possible!
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