On Saturday, January 19, 2019 at 5:42:12 AM UTC-6, agrays...@gmail.com wrote: > > Since it seems conceptually impossible to model a theory with DISJOINT > discrete spatial units, thus requiring the units to be juxtaposed, do such > theories acknowledge difficulty of motion between the units, which might or > might not have boundaries? TIA, AG >
In quantum space or quantum spacetime approaches (like loop quantum gravity, casual dynamical triangulation), space or spacetime is in really a collection of 3D or 4D *cells *(tetrahedra or pentahedra) that are "glued" together somehow. There is no "space" in the conventional Euclidean of Riemannian geometrical/metrical sense, so these cells aren't *in* space (there is no space inside of them or between them). The cells collectively *are* space. - pt -- 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 everything-list+unsubscr...@googlegroups.com. To post to this group, send email to email@example.com. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.