Speaking about motion, which is how the universe works, scientists haven’t mentioned how time is required as a precondition for the existence of motion. What I’m saying is, things happen no matter what time it is, and we use time to reference the sequence of motion; past, present and future. The other thing that intrigues me is, why on earth do we need time as a fourth dimension? How can scientists give dimension for something that doesn’t occupy space, that is not by any means tangible? Can I have any credible explanation for it?