Suppose a man traveled back in time...?

Question

and killed his biological grandfather before the latter met the traveller's grandmother. What would happen?

Answer 1

Then he would disappear just like Michael J. Fox almost disappeared in the first Back to the Future movie.

Answer 2

Well she would have married someone else, or maybe not married anyone. If she did marry someone else then her child would not be the same person. And if she had grandchildren such as the time traveller who did this deed, he would not be the same person either. This is interesting, because if he was not the same person, then he may not have travelled back in time, in that case he would either disappear poof, or maybe be stuck there, because he would not have been born, but another grandchild that was not him.

Answer 3

DISAPPEAR.

Answer 4

He would cease to exist or maybe he wouldnt be born at all.

Answer 5

Okay, for starters, let's call our time traveler Frank, and his grandfather Augustus.

Frank travels back in time and meets Augustus. Kills him. Frank, then, ceases to exist.

But, because Frank then ceases to exist, then Augustus lives, and, through the course of years, Frank is born.

Frank travels back in time and kills Augustus. Again.

Frank, then, ceases to exist.

But, because Frank then ceases to exist, then Augustus lives, and, through the course of years, Frank is born.

Frank travels back in time and kills Augustus. Again.

Frank, then, ceases to exist.

Etc. This is why you should never make a movie based on time travel. :)

Have a great day, and don't kill your grandfather!

Answer 6

i guess he'd die when he goes back in his real time because he not suppose to exist since he killed his grandfather.