Like the Copernican revolution which initiated the Modern project, there has been a thermodynamic revolution in the empirical sciences in the last two centuries. The aim of this paper is to show how we might draw from this revolution to make new and startling metaphysical and ethical claims concerning the nature and value of reality. To this end, this paper employs Aristotle’s account of the relation of the various philosophies and sciences to one another to show how we might assert a new theory of being, moral value, and practical action from the primacy of entropic decay asserted in the contemporary mathematical sciences. This paper proceeds to show how, from what the contemporary sciences have concluded concerning the primacy of entropic decay within reality, unbecoming might be forwarded as a new account of the essence of existence: i.e., the first cause and motivating principle of reality’s formal, material, efficient, and final nature. The paper concludes by arguing that a new and surprising account of universal ethical value and normative duty can be deduced from such a metaphysics of decay.