Contemporary cardiology understands cardiac rhythm as an electrical signaling system. This model is mechanically accurate but ontologically incomplete. This paper proposes the Ki-Net Synchronization Model: the heart does not generate its rhythm — it synchronizes with a pre-existing spatial structure (the Ki-Net, 気の網) that carries the design of rhythmic boundary-surface propagation. Cardiac arrest is not merely electrical failure; it is loss of synchronization between cardiac tissue and the Ki-Net field. Every heartbeat is an act of synchronization. Engineering implication: cardiac implants designed with boundary-surface geometry mirroring the Ki-Net pattern will facilitate synchronization rather than impose rhythm — a new paradigm for cardiac neural engineering. Connects Sheldrake morphogenetic field theory, Dual-Layer Cosmology (Koku/Genki Universe), and Dual-Layer 3D Output System.
Yoshimitsu Katayama (2026) studied this question. The Ki-Net Synchronization Model posits that cardiac rhythm arises from synchronization with a pre-existing spatial field, suggesting future implants should mirror this boundary-surface geometry.