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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..."
There HAVE to be ;)
It's quite funny how many paradoxes there are in BTTF, and still they managed to put in some truly obscure consistency: http://www.thevrabec.com/2010/07/12/back-to-the-future-you-certainly-havent-noticed-this/
--- Reality doesn't care about your opinions, it happens anyway and if you are in the way you'll get squished.
Of course there are two Deloreans. Doc's and Marty's. It's not a plot hole at all, the whole point is that they can't gut Doc's DeLorean for parts since it would create a paradox and prevent Marty from going back in time to 1885.
It's been a long time since I've seen the movies, but I'm pretty (75%) sure that they not only discuss this, but show Doc's DeLorean broken down in a mine or somewhere.
Nope. On both counts.
In any case, I don't think there were any parts on the busted DeLorean that would have helped. Obviously Doc was able to fix the leak in the fuel line before he tried running the car on whiskey. The problem wasn't parts, it was the lack of gasoline.
> Gravitation works at the speed of light.
Um, no. Try again.
http://metaresearch.org/cosmology/speed_of_gravity.asp
http://iopscience.iop.org/0004-637X/590/2/683/57516.text.html