A conjecture from the paper: 'Time, irreversibility and cosmological throttling, Atti Accad. Pelorit. Pericol. Cl. Sci. Fis. Mat. Nat. 103(2), A2 (2025)'

Abstract

We have recently presented a thermodynamic viewpoint that explores the concept of a potential cosmological Joule-Thomson effect, which is supported by the Universe's considerable entropy, primarily stemming from black-body radiation. In an open system, the evolution of entropy is influenced by interactions with the environment and is characterized by two components: entropy flow and production of internal entropy. To fully comprehend these dynamics, it is essential to understand irreversible processes, as they bridge the gap between order and disorder. This new perspective shifts our understanding of thermodynamics, suggesting that the emergence of order is related to non-equilibrium conditions, whereas disorder is generally associated with stable equilibrium. This insight necessitates a re-evaluation of how we analyse natural systems, emphasizing the intricate relationships between order, disorder, and the nature of time. This short communication aims to further develop this approach by investigating the pressure associated with irreversibility in the context of space-time interpretation and proposing a conjecture regarding the geometric consequences of this thermodynamic concept.