The Dying Age
A bounded reality with given (although perhaps not consistent) laws that govern existence.
Worlds can be of different sizes and shapes. They may or may not overlap other Worlds. Scholars suggest that all Worlds can be accessed through The City of Countless Doorways: some claim that access to The City of Countless Doorways is a necessary condition for ascribing World Status, while others insist that such access is a sufficient condition for granting World status.