Comment by mlsu
> By definition, if that simulation has substantial properties, it isn't a simulation.
This is kind of a no-true-scotsman esque argument though, isn't it? "substantial properties" are... what, exactly? It's not a subjective question. One could, and many have, insist that fire that really burns is merely a simulation. It would be impossible from the inside to tell. In that case, what is fantasy, and what is reality?
Define any property of interest. Eg., O = "reacting with oxygen"
S is a simulation of O iff there is an inferential process, P, by which properties of O can be estimated from P(S) st. S does not implement O
Eg., "A video game is a simulation of a fire burning if, by playing that game, I can determine how long the fire will burn w/o there being any fire involved"
S is an emulation model of O iff ...as-above.. S implements O (eg., "burning down a dollhouse to model burning down a real house").