Abstract

Epigenetics describes environmentally responsive modifications to gene expression that occur without altering DNA sequence. Famine is a well studied case of extreme environmental constraint that produces lasting changes in metabolic regulation, sometimes persisting into subsequent generations. This paper interprets these biological phenomena through the Jestin Modal Actuality Framework (JMAF), which conceptualises biological plasticity as local modulation within a globally constrained modal architecture. Epigenetic responses to famine are framed as instances of modal contraction, while persistent developmental effects are interpreted through the philosophical metaphor of modal echo. JMAF does not propose additional biological mechanisms; rather, it offers a metaphysical lens for understanding patterns of constraint, memory, and possibility in biological systems. This balanced integration of empirical biology and metaphysical interpretation situates epigenetic famine responses within a broader conceptual structure of bounded plasticity and historical influence.