TMD: The Delayed‑Choice Experiment as a Consequence of the Non‑Unitary Triadic A–B–C Wave

The delayed‑choice experiment is traditionally interpreted as evidence that a late decision by the experimenter can retroactively determine whether a particle behaved as a wave or as a particle. Within Triadic Mesh Dynamics (TMD), no retrocausality or wavefunction collapse is required.This work shows that the behaviour of the delayed‑choice experiment follows directly from the non‑unitary dynamics of the triadic A–B–C wave: the orientational wave (Layer B) outruns the particle, the triadic network has no memory (forget step), and a detector acts as a local orientational impact that destroys the wave‑guidance structure in real time.The delayed‑choice experiment is thus a time‑shifted geometry of the same mechanical principle that explains the double‑slit experiment. The text provides a fully mechanical, local, and intuitive interpretation based on orientational pressure, non‑unitarity, and the dynamics of the triadic network.