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Re:Scientists are looking for ways to put the simulation hyp... by majewsky on Thursday October 04, 2018 @03:56PM (#18143145)
The validity of that argument hinges on how power and energy work. And our understanding of power and energy need not apply to any other universe. For all we know, the "real universe" does not have preservation of energy and our simulation is powered by a bunch of perpetuum mobiles.
Re:Scientists are looking for ways to put the simulation hyp... by Retric on Thursday October 04, 2018 @10:08PM (#18145201)
Any constraints such as space make a brain in a box more efficient than a simulation of that same brain.

Note, the computing substrate may not map to what the Brain’s thinks it’s substrate is, but that would still impose effects from the real world onto the mind. The equivalent of a cosmic ray flipping a bit in the hardware would actually flip something in the mind where a simulation could detect and correct such errors at the cost of overhead.