Four days ago, I praised Sabine Hossenfelder's remarks about the hypothesis that our Universe is a simulation. It's rather clear that complexity theorist Scott Aaronson disagrees on some fundamental issues, as he wrote in his
In short: blame it for being unfalsifiable rather than for being falsified!He claims that it's not a problem to reconcile the universe-as-a-computer with the Lorentz invariance, too. On the other hand, Hossenfelder (like your humble correspondent) emphasizes that all the predictions similar to "certain computer-like glitches, such as the failure of accuracy or continuity and deja vu cats" seem to be falsified. So at some imperfect but high confidence level, the "simulation hypothesis" has been ruled out. Aaronson doesn't like it and he's wrong.