Current theory of the big bang postulates that there was a very period when gravity reversed and the result was what we term the 'big bang'. Assuming this to be true, negative gravity would cause time to be a function of i. -- 1/2 A = D / (T x T) If A is negative then either D or T squared also has to be negative and, since it is unlikely that D is negative then T squared must be negative. The square root of a negative number must be a function of i. Since the velocity of light = D / T, what does the velocity of light become if T is a function of i ? Any comments?