Comment on Time travel and the economy

• Buffalox@lemmy.world ⁨2⁩ ⁨days⁩ ago

  Maybe not because you can’t prove a negative, but since there is no proof that it exist, there is no reason to believe it does.

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  • WoodScientist@lemmy.world ⁨2⁩ ⁨days⁩ ago

    And yet, you’ve concocted this fantasy that you call “the present,” as if such a thing could exist in a relativistic universe…

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    • Buffalox@lemmy.world ⁨2⁩ ⁨days⁩ ago

      That’s not a concoction or a fantasy, but the actual reality. Or are you trying to argue the present doesn’t exist?

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      • WoodScientist@lemmy.world ⁨2⁩ ⁨days⁩ ago

        en.wikipedia.org/wiki/Relativity_of_simultaneity

        The present does not exist. From the previous link:

        It can be argued that special relativity eliminates the concept of absolute simultaneity and a universal present: according to the relativity of simultaneity, observers in different frames of reference can have different measurements of whether a given pair of events happened at the same time or at different times, with there being no physical basis for preferring one frame’s judgments over those of another. However, there are events that may be non-simultaneous in all frames of reference: when one event is within the light cone of another—its causal past or causal future—then observers in all frames of reference show that one event preceded the other. The causal past and causal future are consistent within all frames of reference, but any other time is “elsewhere”, and within it there is no present, past, or future. There is no physical basis for a set of events that represents the present.

        Many philosophers have argued that relativity implies eternalism.[6] Philosopher of science Dean Rickles says that, "the consensus among philosophers seems to be that special and general relativity are incompatible with presentism.

        If two observers will disagree on which events happened in “the present,” then “the present” cannot exist as a real universal entity. “The present” only makes any physical sense in classical, pre-20th century Newtonian mechanics.

        This is why the block universe or eternalism makes more sense.

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