Spacetime
Spacetime Spacetime is a four-dimensional system that is composed of three spatial dimensions and a temporal time dimension. Einstein used the concept of spacetime in…
A proposed fourth spatial dimension in the Multiverse through which our universe is moving at a constant speed of time. This movement determines the Arrow of Time. This time dimension is separate from the temporal time dimension in Einstein’s concept of spacetime. The addition of the space-time dimension makes the Multiverse a five-dimensional system.