Comment: Descartes' Demon

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Descartes' Demon

In theory perhaps such a machine could be built, though to accurately simulate the universe we would need a computer as big as it unless some data compression mechanisms could be used without introducing approximations or errors.

I get what you are saying. But even so we would be like a train that can only move along a single track, never able to go off, yet believing it was free to roam and only you g along the track of its own free will.