I keep seeing that #eberron & #DarkSun are part of the “shared/general multiverse”, can you point to some things from those in that “shared/general multiverse” that does’nt exist in not FR? There seems to be nothing from them other than “hard2reach their spheres”. "that doesn't exist in FR"

— JM (@JM13136849) December 20, 2017

A lot – shifters, warforged, psionics are rare in FR, gods obviously differ, neogi are rare are unknown, etc.

— Mike Mearls (@mikemearls) December 21, 2017