Contemporary computer 3D technology defines space as an approximation of solid form through polygons — geometrically valid but ontologically incomplete. Based on the Koku Universe theory, this paper proposes a new definition of 3D space: the density of coordinates in which consciousness, time, memory, and service (N) have been accumulated. Unlike topology, the Koku Universe theory asks what has been inscribed in space. This paper defines existential density, demonstrates applicability to 3D technology, architecture, urban design, game design, and cultural heritage, and discusses connection to V=N/D theory. The next revolution in 3D technology is not an increase in polygon count — it is the implementation of existential density. Space is not empty. Space remembers everything.
Yoshimitsu Katayama (Thu,) studied this question.