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The Time Travel Paradoxes of Back To the Future

brumgrunt sent in a fun little piece to get your brain going on a cloudy monday morning. Despite countless viewings of BTTF I still never thought of a few of these. "Throughout Back To The Future Part III, there has to be two Deloreans in 1885. Also, why don't George and Lorraine recognize their son? Why doesn't the time machine disappear in the alternative 1985? These and more Back To The Future paradoxes explored..."

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  1. Ob. Smarmy Spock Comment by DarthVain · · Score: 0, Offtopic

    [Spock notices a elder Vulcan walking in the docking bay]
    Spock: Father!
    [the elder Vulcan turns and is revealed as Spock Prime]
    Spock Prime: I am not our father.
    [Young Spock, now recognizing who he is, approaches]
    Spock Prime: There are so few Vulcans left. We cannot afford to ignore each other.
    Spock: Then why did you send Kirk aboard, when you alone could have explained the truth?
    Spock Prime: Because you needed each other. I could not deprive you of the revelation of all that you could accomplish together, of a friendship that will define you both in ways you cannot yet realize.
    Spock: How did you persuade him to keep your secret?
    Spock Prime: He inferred that universe-ending paradoxes would ensue should he break his promise.
    Spock: You lied.
    Spock Prime: I... I implied.
    Spock: A gamble.
    Spock Prime: An act of faith. One I hope that you will repeat in your future in Starfleet.
    Spock: In the face of extinction, it is only logical that I resign my Starfleet commission and help rebuild our race.
    Spock Prime: And, yet, you can be in two places at once. I urge you to remain in Starfleet. I have already located a suitable planet in which to establish a Vulcan colony. Spock, in this case, do yourself a favor: Put aside logic. Do what feels right.
    [Spock Prime turns and leaves]
    Spock Prime: Since my customary farewell would appear oddly self-serving, I shall simply say...
    [Shows Vulcan hand salute]
    Spock Prime: Good luck.