3-dimensional movement, when seen from a 2-dimensional, plane looks like a 2d object expanding and contracting
extrapolating this, is it possible to assume that 4-dimensional movement, when seen from a 3-dimensional plane, also looks like a 3d object expanding and contracting?
could some aspects of the universe, at least regarding to expansion and contraction (such as the universe expanding faster than the speed of light), actually be a 3d interpretation of 4d movement?