Data-Bases describes the data of the existing world, i.e., the empirical recording of facts, used for machines that were programmed to process the world.
Knowledge-Bases describe the existing world, i.e., the ontological knowledge transfer required for machines (or aliens) that need to sense & affect the world.
Imagination-Bases describe possible worlds, i.e., the simulation of potential future worlds, that humans & machines can build & live inside.
IB’s require the same knowledge representation facilities as KB’s, but also Simulation facilities & the sensual-stream generation capabilities.
“Imagination is more important than Knowledge” (Albert Einstein)