A paradox is a seemingly true statement or group of statements that lead to a contradiction or a situation which seems to defy logic or intuition. For the short-lived UK sci-fi series, use the tag paradox-tv, and for the 2010 film staring Kevin Sorbo and Christopher Judge, use the tag ...
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How do Amy and Rory know who River is in The Wedding of River Song?
So in the Doctor Who episode The Wedding of River Song, the entire episode is an alternate version of the season opener, which means the Amy and Rory in the alternate universe haven't been through the ...
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3answers
154 views
How did this [spoiler] interaction occur in Dr Who “Journey to the Centre” episode?
In the episode Journey to the Centre of the TARDIS
This character
Goes through the rift to warn
How can this even possible without destroying the fabric of space time? Or creating a paradox, or ...
8
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4answers
220 views
How did Clara dedicate Emmette's tombstone in Back to the Future 3?
In Back to the Future 3, Doc Brown is only able to save Clara Clayton because of Marty's presence (as they had to scout that area for the plan).
Though if Marty had not traveled back in time, Doc ...
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2answers
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Doctor Who: Clara Oswin Oswald Paradox
How does Clara Oswin Oswald die twice?
We know that in all of time a person can die only once, and we see Clara die in 2 episodes of Season 7 (Assylum of the Daleks and The Snowmen)?
My question is ...
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2answers
474 views
How could Walter send Peter the letter in the last episode?
THIS QUESTION CONTAINS SPOILERS FOR THOSE WHO HAVE NOT VIEWED THE LAST EPISODE
In the last episode of Fringe, Peter finds a tape addressed to him, which was encased in amber. In this tape Walter ...
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1answer
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Why did time travelers in Timecop turn into gelatinous blobs of goo-energy if they came into contact with their former selves?
We're told throughout the movie that "the same matter cannot occupy the same space".
Yet, even after a few months it's very unlikely that there are many of the same atoms in your body that were there ...
7
votes
2answers
429 views
On the nature of paradoxes in the Whoniverse?
Loosely: How do Paradoxes work in Doctor Who?
We see in previous episodes,
To allow a paradox to occur.
We also have the the weeping angels, that feed off of time loops. They are however ...
7
votes
2answers
376 views
Does the Doctor have a black list of times and places?
In one of the latest episodes of Doctor Who (The Angels Take Manhattan)
Is this the only such place, or does the Doctor keep a list of places that he can't go?
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3answers
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What would happen if you portalled the TARDIS inside itself?
The TARDIS is one of the few fictional objects that could contain themselves. Firstly, because "it's bigger on the inside" but secondly because the TARDIS has some means of sustaining paradoxes (which ...
3
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0answers
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Does “Isaac Asimov's Robots in Time” series violate the grandfather paradox?
As anyone who is familiar with the Isaac Asimov's Robots in Time series by William F. Wu is already aware, the Mojave Center Governor does not realize that sending his component parts backwards ...
3
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2answers
441 views
Primer: Will Thomas Granger still be sent back in Time?
In the movie Primer:
At first, just as in any timeline, what Abe/Aaron experience is always determined by the past. However, as the boxes are developed and the characters start looping back, it would ...
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5answers
710 views
How did Senator Travers not just survive as a Time Paradox Duplicate
In Decision 3012 (stop reading if you do not want spoilers):
Senator Travers uses the time paradox code from Bender's Big Score to go back in time to stop Nixon, and then he disappears when he won ...
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2answers
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What will happen if Pinocchio says: My nose will grow [closed]
If his nose is not growing, he is telling a lie and his nose will grow but then he is telling the truth and it can't happen.
If his nose is growing, he is telling the truth, so it can't happen.
If ...
2
votes
1answer
135 views
How did Garth manage to avoid the Grandfather Paradox?
In Cyborg 2087, Garth travels back in time and ends up preventing his own existence, a prime example of the Grandfather Paradox in action. If that's the case, how was he able to even go back in time ...
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3answers
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How did the T-1000 avoid the bootstrap paradox?
I have watched Terminator 2 several times now, but there is one major problem with it that has been bothering me. The Terminator* was sent back in time to (unsuccessfully) assassinate Sarah Connor, ...
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6answers
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Why was Marty present in his jump to 2015 in Back to the Future 2?
I was doing some thinking about the paradoxes that arise during Back to the Future 2 when Marty, Doc and Jennifer travel to 2015 to see their future selves and help Marty's kid.
It was shown that ...
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5answers
616 views
Could SG1 have used the Time Jumper to steal as many ZPMs as they wanted?
In the events of Moebius, SG1 travels back in time to steal a ZPM from Ra in ancient Egypt.
It went something like this:
SG1 resolves to steal the ZPM. They travel 3000 years back in time.
They ...
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1answer
183 views
Would guys from the Red Dwarf respawn if their future bodies kill themselves?
Would the Red Dwarf guys respawn in case
(1) is the group that is to the present
(2) is the group that is traveling in the past to visit (1)
(1) is in year 8 000 000 for example
(2) is in year 8 ...
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5answers
903 views
Trouble of time travel in Harry Potter?
What would happen when Harry and Hermione would meet other Harry and Hermione while using time travel clock? For example scene of execution of hippogriff in Prisoner of Azkaban.
14
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8answers
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How do the timelines from Misfits align?
In episode 6 of the second season, we saw the fulfillment of a number of predictions made earlier in the series.
There are a number of spoilers involved in this question.
Specifically:
However...
...
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1answer
344 views
Shouldn't there be a puddle jumper in Egypt at the end of Moebius in Stargate SG-1?
I've just rewatched Moebius, and made a realisation at the end of the episode regarding the puddle-jumper they use (the one discovered in It's Good to be King:
But, I don't remember the ...

