but i started thinking if you went back in time and then you had sex with say your grandma and got her pregnant would you still exist. or because by making another human different human juice, with a different personality, and a different physical build. would they than attract a different type of person and than the timeline of your family would cease to exist and you would fade away like Marty McFly in Back To The Future (which was most likely how i started thinking of this by the way)
and at that point i got hungry and distracted by the Nyan Cat song (Nyan- Japanese for Meow)
Nyan Cat Link :http://www.youtube.com/watch?v=QH2-TGUlwu4&feature=aso