time travel !!

Yesterday I was thinking of good old BITSian days and got very nostalgic. Then I thought if at all possible, I would give ANYTHING to be there back in time (probably that "ANYTHING" was there because I know its not possible :P). Then a weird thought occurred to me.

Generally in movies when a person goes back in time, he exists there with his own self at that time. But what if, when you go back in time, you replace your other self with your present self. In that case everything will go the same way it went till the day you commenced time travel and then you again go back in time (cause you cant change natures course of action). Now you have entered in an infinite loop where you are repeating same set of actions over same period of time again and again until I don't know when.

This thought really scared the hell out of me and I immediately gave up the idea of going back in time. This really helped me get out of the nostalgia though.