The ability to jump forward and backwards in time has long fascinated science fiction writers and physicists alike. So is it really possible to travel into the past and the future?

The ability to jump forward and backwards in time has long fascinated science fiction writers and physicists alike. So is it really possible to travel into the past and the future?

  • bstixEnglish
    4·
    11 months ago

    That’s just a local “if” statement, where you assume something to be true based on local information.

    You wouldn’t actually know if a dingo ate the envelope unless you check it. The information to confirm your assumption is still in Australia.

    • Knusper@feddit.de
      1·
      11 months ago

      Yes, in particular, the information about your letter’s contents isn’t available in Australia either. You would now need to use traditional, at-most-light-speed communication methods to actually deliver this information to whomever holds the second letter.

      It’s just ‘instant’, if you look at the whole system from the outside, as an omnipotent being.