we might give some thought to what those stopping criteria might be and how to avoid satisfying them. (The very idea of a stopping criterion is at least superficially reminiscent of the 19th-century idea of the “end of history,” associated with the German philosopher Georg Wilhelm Friedrich Hegel and a number of other thinkers. One version of this idea holds that the world is evolving to a point where it becomes conscious of its nature, which is the endpoint of history. In the naturalistic key of simulation: perhaps simulators are studying what we know, and will terminate the simulation when
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