This is an interesting question...

Up until 2012 (with identification of the higgs boson) scientists haven't actually found anything that makes atoms actual matter!! they are made up of energy. It is very possible that this is collective imagination.

As for dimensions or parallel universes. They have found in nature, particles that are seemingly separate from one another and behaving in a paradoxical manner and yet have an inherent connection and pattern that they follow in assimilation. showing that something can work in complete parallel within the same system and still have a joined connection within that, effectively working on two plains at the same time.

I am not a scientist by far and that is about all I know tbh. I do find it all very fascinating that the things we take for grated as reality actually could not truly exist at all !!

Back in the 'real' world, I do have a doctors appointment and they 'really' think I am crazy so maybe don't listen haha

Thank you for the thread