Questions tagged [time-travel]

A concept frequently used as a plot device involving the manipulation of events by characters traveling through time.

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9
votes
5answers
12k views

How is Cooper's age justified?

In Interstellar the course of events to my knowledge is the following: The time taken to travel from Earth to the wormhole is 2yrs (Aggregate = 2). After that we don't know how much time passed on ...
65
votes
8answers
38k views

In Back to the Future Part II, how could old Biff have made it back to 2015?

In Back to the Future Part II, Doc picks up Marty in 1985 and takes him to 2015. Then old Biff realizes the Delorean is a time machine. Old Biff steals the Delorean and travels from 2015 to 1955 to ...
30
votes
12answers
77k views

Is the time loop on the cruise ship a second timeline in Triangle?

In Triangle, at the start when Jess arrives at the boat for the "first" time, is this the start of the continuation of the ending scene? It's known that the cruise ship and any surroundings after ...
46
votes
5answers
40k views

What does the woman from the future mean when she says she's “in insurance”?

At the end of 12 Monkeys, the doctor spreading the virus gets on a plane and sits next to a woman we know (or can assume) is from the future. She tells the doctor that she's "in insurance." What does ...
173
votes
8answers
77k views

What caused and ended the time loop in Groundhog Day?

I've always wondered what caused the Time Loop experienced by Phil Connors in Groundhog Day, as well as what ended it, but I don't recall it being discussed in the movie. What was the cause for the ...
77
votes
11answers
10k views

Why does Harry only make use of time travel in The Prisoner of Azkaban?

At the end of The Prisoner of Azkaban, Harry and Hermione travel back in time to save Sirius (and as it turns out, Buckbeak) and escape the Dementors. If this is a legitimate option for saving people,...
24
votes
3answers
3k views

How come the events of Terminator didn't change the future, but the events of Terminator 2 did?

The 1984 events in the original Terminator don't change the future - rather, the events are consistent with a single "version" of 2029, the 2029 seen in the film. This is evidenced by the fact that ...
11
votes
5answers
2k views

Are there any guides to the timeline of Donnie Darko?

I have the basic understanding that the entire plot to Donnie Darko revolves around time traveling. As far as the ending is conceded, you may have various interpretations of what actually happened. ...
7
votes
3answers
1k views

Crossing your own timeline, changing the future - how does that work?

There are many movies and TV episodes in which a character "crosses his own timeline", sometimes even meeting his past or future self (e.g. The Day of the Doctor). Technically, I should say meeting ...
4
votes
2answers
923 views

Why didn't young Barry disappear?

In The Flash S01E15 episode "Fallout" we saw Barry see himself while running. At the end of the episode we saw that Barry accidentally makes a time jump and goes back in time. It becomes clear that it ...
12
votes
3answers
1k views

In “The Time Traveler's Wife” why does Henry never meet himself?

There are several occasions in the Time Travellers Wife where Henry arrives at the same point as he's already been, such as when he sees himself die and when Alba is conceived. Why does he never meet ...