On Sunday, August 25, 2019, 'Brent Meeker' via Everything List < [email protected]> wrote:
> > > On 8/25/2019 12:50 PM, Jason Resch wrote: > > What's the difference between abstract and concrete? I think it's only a > matter of relative perspective. Other universes to us seem abstract. While > to people in other universes ours would seem abstract. Do you agree? > > > No. The difference is one of completeness. > > > I wasn't assuming incompleteness when I used the term abstract. That's why I stipulated isomorphically identical. > > A abstract something is incomplete. The verb is "to abstract" meaning to > leave aside irrelevant things. But a universe doesn' t have anything "left > aside". That's why I look at it the other way around when you talk about a > "simulation" that is isomorphic to our universe. > > Could you clarify this point, I'm not sure I follow. > If it's a *complete and perfect simulation*, then it's a universe > itself. It can't be *just* a mathematical structure, it's identical to > what you think it is "simulating". > > Why can't a simulation be a mathematical structure? Computations and Turing machines are mathematical objects. Jason -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/CA%2BBCJUiHiGZ%3Dj_9p11Fwz5TVaTRqSVW5zrDm%3DgG%3DY5usVtYphQ%40mail.gmail.com.
