791
time to think (lemm.ee)
submitted 2 years ago by to c/memes@lemmy.ml
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[–] 39 points 2 years ago (11 children)

This blew my mind. All those movies!

So, Back to the Future's a bunch of bullshit?!

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  • [–] 42 points 2 years ago (3 children)

    It's possible to assume that the professor did the math.

    But yeah any time machine would also basically have to have space travel built in to compensate.

    They knew that when they wrote Dr Who (IE the time travel machine is called a TARDIS (Time and Relative Dimension in Space).

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  • [–] 4 points 2 years ago* (2 children)

    Nah, this thing with the planet moving under you is stupid because it assumes a fixed reference frame which is not a thing in our universe. Any movement is always relative to something. You can't just "stay in place". Having the Earth move from under you is very arbitrary.

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  • [–] 18 points 2 years ago

    There's a ton of issues with time travel. That could be one, but most fictional time-travel devices can be said to accommodate for the difference in distance. It would just be boring to explain on-screen.

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  • [–] 7 points 2 years ago

    That's why doctor who works, its very clear about the fact that TARDIS travels in spacetime, it can do only time, only space or both space and time and they can get away with time traveling and still staying on earth

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  • [–] 5 points 2 years ago (2 children)

    It could be explained as a time and space machine but just saying time machine is easier.

    That's how ive always thought of these things in my head.

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