from Hacker News

Why it is (nearly) impossible that we live in a simulation

by qrios on 4/14/25, 12:43 PM with 3 comments

  • by gavinray on 4/14/25, 1:01 PM

    Is the title slightly misleading?

    The abstract concludes with:

      > "On the other hand, our results show that it is just impossible that this Universe is simulated by a universe sharing the same properties, regardless of technological advancements of the far future."
    It seems reasonable that the energy and computation requirements to simulate our universe couldn't be done in an equivalent universe.

    But isn't the assumption that the "encapsulating system" must inherently be more "powerful" than our own, in the same way that computer systems running simulations function?

  • by qrios on 4/14/25, 12:48 PM

    There is a twist: author (Franco Vazza[1]) simulates universes:

    > I study turbulence, shocks, magnetic fields and relativistic particles in the Universe using challenging large cosmological simulations.

    [1] https://cosmosimfrazza.myfreesites.net