The act of two men whipping out their dicks, and touching the tips together. Once the tips have made contact, the men spin their dicks around, clockwise at incredible speed. If enough speed is built up, it will cause the two of them to travel forward in time. If they spin their dick counter-clockwise, they will go backwards in time. If during this process, the tips lose contact, the world will explode.
ok so basically you go to a different date than the current but then the new time is the current and so you just changed the present but not your present and theres just like ten million billion trillion paradoxes that destroy the fabric of time that kill everything so just dont please
A thing that contrary to popular belief, cannot cause paradoxes. The only way you would be able to kill your grandfather would be to kill him after your father was born, in which case you never met him in the first place and that will be how it's always been. In any other case, you are physically unable to, for you will inevitably be stopped or change your mind. When you go back in time, you are only able to do what has already happened.
guy: Ima prevent (Insert unexpected disaster here) from happening
*Boom boom kapow time travel*
guy: the end is nigh!!!
people: haha crazy person