Hi there, I have a question. To me, measuring spacial dimensions is quite a bit different than measuring the time dimension. I was thinking the other day and it seemed very obvious to me what the main difference was. Time never goes the other way. A dimension defines two equal and opposite vectors. So really the thing I'm poking at is that all this while we've been contributing 8 vectors made from 4 dimensions in spacetime, when we know that one of those vectors is not a possible route of travel for any object - time cannot "run" backwards. Causality states that what happens before causes what happens after. Time cannot logically run backwards. It's impossible. So really we don't have 8 vectors making up 4 dimensions we have 7 vectors making up 3 and 1/2 dimensions. We have 6 spacial vectors (up, down; left, right; forward, backward) and one time vector (forward in time) because the other time vector (backwards in time) goes against Darwinist nature. Could this have effected any of Einsteins calculations? Is this lack of the "opposite" vector of time's movement documented? What are the ramifications on time as a dimension if it is really a uni-mension???