Fasting as Metabolic Ground State Navigation: Ketosis as Displacement Mode Switch, Autophagy as Return Mechanism, and the Therapeutic Potential of Controlled Metabolic Displacement

Fasting induces controlled metabolic displacement D(ξ_metabolic) to activate autophagy, ketosis, and hormetic return mechanisms. Insulin resistance is a metabolic wrong attractor from chronic overfeeding. Extended fasting triggers stem cell regeneration through extreme displacement-and-return. The optimal fasting protocol minimizes Φ_fast while maximizing autophagy and insulin sensitivity restoration.