Zygon 52 (3):905-913 (2017)

Javier Sánchez Cañizares
Universidad de Navarra
In his latest book,Roger Penrose deals with three foundational problems of current physics fromhis particularly fresh perspective.He criticizes mainstream string the- ories, standard interpretations of quantum mechanics, and pre-Big Bang cosmolo- gies inasmuch as they aim to solve profound questions while glossing over equally deep issues in our understanding of nature. In this review, I analyze Penrose’s main arguments, emphasizing his presentation of the Second Law conundrum as “the most profound mystery of cosmology”, and discuss his own proposals to overcome the impasse. I especially focus on the capabilities of conformal cyclic cosmology to illuminate the enigma of the extraordinarily low entropy at the Big Bang and review its capacity of success in stipulating a reset for the entropy of the universe. Even though one need not follow Penrose’s tentative answers, which are not immune to serious critiques, much of his view can be shared as a sound starting point in search of “the new physics of the universe.”
Keywords Cosmology  Thermodynamics  Universe  Quantum Mechanics  Roger Penrose  Big Bang  Anthropic Principle  Physics  2nd Law  Entropy
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DOI 10.1111/zygo.12359
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Penrose on What Scientists Know.Rubén Herce - 2016 - Foundations of Science 21 (4):679-694.

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