I understand that the “observable” universe is entirely based on where you are located. Is there a method of determining where you are currently located without being relative to the observer? Everything is currently expanding away from each other, meaning nothing is ever in the “same spot” for very long. How do you know where you actually are in the universe?

Relevant lecture: https://m.youtube.com/watch?v=6kwcokUFaqo

  • florinandreiBEnglish
    1·
    1 年前

    Maybe they say give us J200 coordinates from where the earth would have and what the MJD date would be if we didn’t move the earth. Alternatively, they could say “we moved you all to a new planet. Tell us where you are in coordinates from earth”.

    Now the problem is clearly stated. Without this, we would have to choose from a few different explanations:

    • aliens do not really understand physics, so all bets are off
    • aliens are evil and they want us to fail

    Your point here doesn’t make sense.

    I’m guessing some hidden, subliminal dependence on an absolute space concept makes it seem so.