I’ve recently come across the posts of Rob Bryanton.  Rob is a Canadian author, composer, and sound designer, who is interested in the nature of reality. He  created the following animation for his website, which promotes his book of the same name. It explains a lot about the idea of multiple dimensions and parallel universes. His idea varies from the leading theory that there are eleven dimension, because he considers time a direction or quality of the other dimensions and not a dimension in and of itself. My theory would be that time, which is generally considered the 4th dimension, is actually the first dimension, but I’m just an armchair physicist.