firstly it is proven that as speed increases time slows,(atomic clocks in planes experiment, there for it would seen that at the speed of light time stops there for if you are traveling at the speed if light and pointed a torch in the direction you are going the photos are traveling at 2 times the speed of light there for their time has slowed past 0 and started reversing.
san toast, that isnt right becuase your time is slower then everyone elses you seen to age slowere, howevery once passt the speed of light you go backward in time.