Kathrealituum (Яk) is a kathlimit of all kathrealities regardless of what is "real" and what goes beyond like metaness.
These realities have set-relative imaginaries because realities of any kind are scenarios. A kath- over these and metaness would surpass the border of scenarios.
Non-Ficto Kathextents[]
Kath- is not ficto-exclusive confined to an scenario. Ficto-kath extents are rejected for "true boundless", due to scenarios having set-relative imaginaries. A ficto-variant of Kathrealituum is called Weak Kathrealituum.