Four is a box.
Five breaks the symmetry.

A system of 4 is stable, rectangular, and closed. A system of 5 breaks static symmetry with φ (1.618), lifting the ledger into a 10³⁵-pascal resonant vortex while leaving the 5th aperture wide open.

Internal torque: non-zero. Phase exchange: standing wave ↔ τₖ halo. Localisation: refused.

An interactive physics-inspired meme model, not a measured physical system.