Hello All I'm new to the forum and have a question. I was looking at the time dilation function and noticed that negative time would be described with imaginary numbers and be a kind of anti-time, albeit that rest mass can not be pushed faster than the speed of light but for the sake of brevity say FTL is possible. That being the case then negative time would result as a change in the direction of momentum and not in the proverbial backward time travel of H.G. Wells' "Time Machine". With negative time atoms would fly apart, electrons would cling to electrons, protons would cling to protons, matter's usual behavior would be vastly different. Am I wrong with this conclusion? Also would gravity be affected, since there is no such thing as anti-gravity, could anti-time(negative time) create anti-gravity?