The Limbo (known as post-Fictobox) surpasses the Fictionality on full extent. They pretend that you escaped Reality, but it's actually not.
There's nothing to describe the Limbo, due to a strange property that the Fictionality fails to understand; even with powerful ficto-abstraction.
The Fictionality can be contained by a "quasireality" Limbo, in which we live in something post-ineffably with no way to describe quasirealities entirely.