Comes up in Iain M. Banks sci fi novels as a religon. With the interesting twist that the simulation will end, just as soon as a certian percentage of sentient beings are aware-of/believe-in 'the truth'.
Interesting, as it means that both enlightenment, and irradication, of non-believers. Are equally effective ways of increasing said percentage, and completing the simulation.
Thank goodness that real religions don't think that way.
Thank goodness that real religions don't think that way.