2009/12/08 by Gustavo E. Romero, Romero, Gustavo E.
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #Noncommutative and Quantum Gravity Theories #Popular Physics (physics.pop-ph) #astro-ph.CO #physics.pop-ph
paper · pdf · doi:10.48550/arxiv.0912.1604
10 pages, 2 figures, based on the speach given on the occasion of receiving the Sersic Prize in Astronomy. To be published in the Bulletin of the Argentine Astronomical Society
arxiv created 2009/12/08 · openalex publication_date 2009/12/08 · arxiv updated 2010/01/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
It is a remarkable fact that all processes occurring in the observable Universe are irreversible, whereas the equations in which the laws of physics are formulated are invariant under time reversal. The emergency of irreversibility from the fundamental laws has been a topic of consideration by physicists, astronomers and philosophers since Boltzmann's formulation of the "H" theorem. In this paper I shall discuss several aspects of this problem and its connection with the dynamics of space-time, within the framework of modern cosmology. I shall comment, briefly, on the nature of physical time and its relation with the so-called "consciousness".