Why is space three-dimensional, and not two-dimensional, or four- or five- or more-dimensional? I mean the extended space dimensions, not the micro dimensions. Why does it have a certain number of dimensions at all?
Category Archives: Cosmology
How the Universe Does It
How does the universe decide what’s going to happen next? Basically it’s running a massively parallel, real-time, infinite-precision numerical simulation.
Time
There is only the present moment. This isn’t philosophical mumbo-jumbo, I mean physically, time is a single point.
Very Universe 