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Essay Abstract
In this short essay we postulate the "Epiontic Principle" (EP), a concept which underlies more or less explicitly many physical theories, and we study its implications, in particular for the nature of time. After a brief discussion about the distinction between temporal dimension and time evolution, we adopt the EP as a guideline in Gedankenexperiments in order to understand the indefinite and shifting essence of what it is commonly called "the past". Real experimental results -- analyzed here in accordance with the epiontic paradigm -- confirm our qualitative predictions. In a subsequent speculative section, the EP is applied to the understanding of temporal evolution and thus to the laws of physics. The essay terminates with some thoughts of a cosmological nature and on desirable future quantitative developments allowing to study the EP with the aid of toy-models: the epiontic foils.
Author Bio
Luigi Acerbi received a B.Sc. in physics (2005), a B.Sc. in computer science (2006), and he is currently finishing his Master's degree in theoretical physics at the University of Milan, Italy (Università di Milano-Bicocca). As a computer scientist, he has done research on the field of topological dynamics, studying cellular automata as discrete-time dynamical systems (to be published in Theoretical Computer Science). As a physicist, he is working towards his degree with a thesis on a computational model of reheating which adopts interacting scalar fields on a inflationary background.