Geraint F. Lewis

Astrophysicist and cosmologist at the University of Sydney, known for research on gravitational lensing, dark energy, and the large-scale structure of the universe, and for coauthoring popular science books such as A Fortunate Universe and The Cosmic Revolutionary's Handbook.

This list of books are ONLY the books that have been ranked on the lists that are aggregated on this site. This is not a comprehensive list of all books by this author.

  1. 1. A Fortunate Universe

    Life in a Finely Tuned Cosmos

    Explores why the physical constants and laws of nature appear finely tuned for the emergence of stars, chemistry, and life, and what would happen if they were even slightly different. It surveys modern cosmology and particle physics, explaining key parameters like the cosmological constant and nuclear resonances in accessible terms. Weighing possibilities such as selection effects, a multiverse, or deeper unifying principles, it considers the scientific and philosophical stakes and employs Bayesian reasoning to assess competing explanations. The discussion concludes with how future observations and theories might test whether our apparent good fortune is contingent or compelled by fundamental physics.

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