This is my first post here, and as someone who has always had a pretty big interest in science (particularly physics), I thought this would be a good place to possibly get some answers from those who have some more formal schooling. My first question is; is there a general scientific consensus regarding the number of dimensions that exist? Obviously, there are the the 3 spacial dimensions we exist in, combined with time (the fourth) to create the concept of spacetime. I know that there are few other theories out there such as string theory that have up to 11 dimensions, but anytime I try to get more in depth with those theories, things quickly go over my head.
I guess this all comes down to something I was thinking about recently. This will probably sound weird, but I have always felt that there are an infinite number of dimensions that exist within each of us, and we in turn exist within an infinite number of dimensions. These dimensions extend outward and inward in every direction simultaneously. What I mean by this is, is that if you were to "zoom out" infinitely on the entire universe, you would pass through infinite dimensions, and the same would be true if you were to continue to "zoom in" on an atom. Essentially, our universe could just be a quark in an atom in some other beings meatloaf somewhere. The same would be true for that being's stars, and so on, and so on. This doesn't seem to be something that could be proven, since you could never "travel" to the other dimensions being that they extend in every direction at the simultaneously.
Does anyone know of any theories that deal with this? Is this completely ridiculous to believe? It just seems like we are putting ourselves at the "center of the universe" so to speak, by believing that everything is relative to our size. Why is it we believe that matter becomes more and more simple the further we get away from our relative size? Is an electron really that much more simple than a star? How do we know that matter does not continue beyond the quark? Just because we cannot observe it? Why can't our entire universe be a small portion of infinite other universes?
Sorry for all the questions, but this stuff really interests me. I would appreciate any suggestions for reading material that might delve deeper into this subject matter.
Thanks!