An interesting thing about portals in fiction is that you generally don't have to be a special person/chosen one type to use them. At most you need some special training or spice or something. It's generally something special about an object or place.
-
-
Charles Stross' worldwalkers also have genetic specialties that make them sort of "chosen".
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.