Quotes from book
Fashion, Faith, and Fantasy in the New Physics of the Universe

Name: Fashion, Faith, and Fantasy in the New Physics of the Universe
Author: Roger Penrose

Fashion, Faith, and Fantasy in the New Physics of the Universe is a book by mathematical physicist Roger Penrose, released in September 2016. The book is based on his lectures that he gave at Princeton University in 2003.

“Whereas originally the hopes for string theory, and its descendants, were that some kind of uniqueness would be arrived at, whereby the theory would supply mathematical explanations for the measured numbers of experimental physics, the string theorists were driven to find refugee in the strong anthropic argument in an attempt to narrow down an absolutely vast number of alternatives. In my own view, this a very sad and unhelpful place for a theory to find itself.”

Roger Penrose book Fashion, Faith, and Fantasy in the New Physics of the Universe

Source: Fashion, Faith, and Fantasy in the New Physics of the Universe (2016), Ch. 3 Fantasy, p 322

“One is left with the uneasy feeling that even if supersymmetry is actually false, as a feature of nature, and that accordingly no supersymmetry partners are ever found by the LHC or by any later more powerful accelerator, then the conclusion that some supersymmetry proponents might come to would not be that supersymmetry is false for the actual particles of nature, but merely that the level of supersymmetry breaking must be greater even that the level reached at that moment, and that a new even more powerful machine would be required to observe it!”

Roger Penrose book Fashion, Faith, and Fantasy in the New Physics of the Universe

Source: Fashion, Faith, and Fantasy in the New Physics of the Universe (2016), Ch. 1, Mathematical Elegance as a Driving Force, pp. 102–103

“General relativity is certainly a very beautiful theory, but how does one judge the elegance of physical theories generally?”

Roger Penrose book Fashion, Faith, and Fantasy in the New Physics of the Universe

Ch. 1, Mathematical Elegance as a Driving Force, p. 7 https://books.google.com/books?id=T09kCwAAQBAJ&pg=PA7. <br class="br">Fashion, Faith, and Fantasy in the New Physics of the Universe (2016)

“The idea of having an ambient space-time of some specific dimension seems to play less of a role of string theory than in conventional physics, and certainly less than the kind of role that I would myself feel comfortable with. It is particularly difficult to assess the functional freedom that is involved in a physical theory unless one has a clear idea of its actual space-time dimensionality.”

Roger Penrose book Fashion, Faith, and Fantasy in the New Physics of the Universe

Ch. 1, Mathematical Elegance as a Driving Force, p. 62 https://books.google.com/books?id=T09kCwAAQBAJ&pg=PA62. <br class="br">Fashion, Faith, and Fantasy in the New Physics of the Universe (2016)

“What the anthropic principle depends upon is the idea that whatever is the nature of the universe, or universe portion that we see about us, being subject to whatever dynamical laws govern its actions, this must be strongly favourable to our very existence.”

Roger Penrose book Fashion, Faith, and Fantasy in the New Physics of the Universe

Source: Fashion, Faith, and Fantasy in the New Physics of the Universe (2016), Ch. 3, Fantasy, p. 311