Time
- Bootstrap paradox: Can a time traveler send himself information with no outside source?
- Predestination paradox: A man travels back in time to discover the cause of a famous fire. While in the building where the fire started, he accidentally knocks over a kerosene lantern and causes a fire, the same fire that would inspire him, years later, to travel back in time. The bootstrap paradox is closely tied to this, in which, as a result of time travel, information or objects appear to have no beginning.
- Temporal paradox: What happens when a time traveler does things in the past that prevent him from doing them in the first place?
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- Grandfather paradox: You travel back in time and kill your grandfather before he conceives one of your parents, which precludes your own conception and, therefore, you couldn't go back in time and kill your grandfather.
- Hitler's murder paradox: You travel back in time and kill a famous person in history before they become famous; but if the person had never been famous then he could not have been targeted as a famous person.
Read more about this topic: List Of Paradoxes
Famous quotes containing the word time:
“It may be the more
That no line of her writing have I,
Nor a thread of her hair,
No mark of her late time as dame in her dwelling, whereby
I may picture her there.”
—Thomas Hardy (1840–1928)
“Once we have found ourselves, we must understand how from time to time to lose—and then to find—ourselves once again: assuming, that is, that we are thinkers. For a thinker it is a drawback to be bound to a single person all the time.”
—Friedrich Nietzsche (1844–1900)
“An old French sentence says, “God works in moments,”M”En peu d’heure Dieu labeure.” We ask for long life, but ‘t is deep life, or grand moments, that signify. Let the measure of time be spiritual, not mechanical.”
—Ralph Waldo Emerson (1803–1882)