- Dec 23, 2012
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Nick Bostrom's the guy I'm thinking of, I think, and he has an argument that goes something like this (note, the argument below is not structured in quite the valid way or whatever; I'm paraphrasing from kinda bad memory, so fill in the logic gaps at your discretion, if you please):
1. In the real world (whatever it is), civilization will develop enough to either self-destruct (or otherwise come to an end), to endure without developing world-simulation technology (or without using such technology), or it will develop and use world-simulators.
2. For any given world, the chances that it is a simulation are vastly higher than the chances that it is not.
C. Therefore, for our world, the chances that it is the real one are vastly lower than the chances that it is a world being simulated by civilization in the real one.
Now my basic objection would be: we only have evidence that world-simulation is possible based on experiences in our world. If our world is itself being simulated, though, then none of our evidence in favor of such a possibility would be real evidence. So unless we assume that our world is real, we have no reason (unless we appeal to a priori arguments) to believe that it is possible for it to be a simulation.2. For any given world, the chances that it is a simulation are vastly higher than the chances that it is not.
C. Therefore, for our world, the chances that it is the real one are vastly lower than the chances that it is a world being simulated by civilization in the real one.