Magic Cube 1977, neon, two-way mirror plexiglas, 24"h x 22"w x 22"d

I want to make a close packing of one polyhedron filling space completely -
moving out into space endlessly - unlimited by any sense of an exterior. How to do it?

Red neon tubes defining the edges of a truncated octahedron are placed inside a two-way mirror cube - the light of the
neon illuminates the polyhedron within the cube - reflecting - filling space endlessly - an infinite form in a finite space.

The Magic Cube is ordered - structured. Two-way mirror surfaces appear solid when the neon tubes are in front of them -
dissolve when the neon light is stronger behind them - become glass - revealing the form stretching into space.

But chance relationships occur - ever changing - as one moves around it - seeing new views -
expanding without limits - reflections disappearing in space.

Is it an infinite structure? - in three-dimensions? Why not create one in four-dimensions?