I think gravity is “real” for any bodies that it affects. For the person running the simulator it’s “real” too, but in some other sense — it’s not affecting the person physically but it produces some information for him that wouldn’t be there without the simulator (so we cannot say they’re entirely causally disconnected). All this requires further thinking :)
Also, english is not my main language so there can be some misunderstanding on my part :)
Okay, I had pondered this question for some time and the preliminary conclusions are strange. Either “existance” is physically meaningless or it should be split to at least three terms with slightly different meanings. Or “existance” is purely subjective things and we can’t meaningfully argue about “existance” of things that are causally disconnected from us.
I think gravity is “real” for any bodies that it affects. For the person running the simulator it’s “real” too, but in some other sense — it’s not affecting the person physically but it produces some information for him that wouldn’t be there without the simulator (so we cannot say they’re entirely causally disconnected). All this requires further thinking :)
Also, english is not my main language so there can be some misunderstanding on my part :)
Okay, I had pondered this question for some time and the preliminary conclusions are strange. Either “existance” is physically meaningless or it should be split to at least three terms with slightly different meanings. Or “existance” is purely subjective things and we can’t meaningfully argue about “existance” of things that are causally disconnected from us.