In the context of the Grandfather Paradox, why might the time traveler cease to exist if they prevent their grandparents from meeting?
Because time travel is impossible.
Because the time traveler would become their own grandparent.
Because altering the past can create logical contradictions.
Because the time traveler would become immortal.
The Grandfather Paradox, as discussed in the text, creates a logical contradiction when the time traveler prevents their grandparents from meeting, potentially leading to the time traveler's non-existence.