Time Travel And Paradoxes

Time travel, Paradoxes, & etc.
By: Antoinne MUrraine

List of some time paradoxes:
1. TEMPORAL Paradox:
Is when a time traveler goes into the past and does something that would prevent him from time travel in the first place.
2. Bootstrap Paradox: is a paradox of time travel in which information or objects can exist without having been created.
3. Polchinski’s Paradox:
A billiard ball can be thrown into a wormhole in such a way that it would emerge in the past and knock its incoming past self away from the wormhole entrance, creating a variant of the grandfather paradox.
4. Predestination Paradox
A man travels back in time to discover he is 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.

Temporal Paradoxes:
Possible Solutions

Novikov self-consistency principle:
Says that anything a time traveler does in the past must have been part of history all along, so even if the time traveler has an influence on the past, it is impossible for anything the time traveler does to "change" history. So, if, any attempt by the time traveler to kill one of his ancestors before they became a parent would always fail for whatever reason (the gun would jam, or the time traveler would just have a change of heart)
Multiple universe theory:
This theory says that there are infinite number of universes, so if a person is about to travel back in time, he will create his own parallel universe by going into the past. So if he kills his grandfather, a paradox would not happen because the grandfather that he has killed is not his own grandfather.
Erased Timeline theory:
This theo...

... middle of paper ...

...ete the time machine. Bob then uses it to travel back in time to the 30th birthday, where the schematics are given to the past self.

Predestination Paradox:
Examples & Variations

One example, a man receives information about his own future, telling him that he will die from a heart attack. He decides to get in shape to avoid dying from a heart attack, but in doing so overexerts himself, causing him to suffer from a heart attack that kills him.
Another example, in 1850, Bob's horse was spooked by something, and almost took Bob over a cliff, had it not been for a strange man stopping the horse. This strange man was later honored by having a statue of him erected. Two hundred years later (obviously assuming Bob lived more than 200 years) Bob goes back in time to sight-see, and sees someone's horse about to go over a cliff. He rushes to his aid and saves his life.