## New Theories of Everything: The Quest for Ultimate ExplanationWill we ever discover a single scientific theory that tells us everything that has happened, and everything that will happen, on every level in the Universe? The quest for the theory of everything - a single key that unlocks all the secrets of the Universe - is no longer a pipe-dream, but the focus of some of our most exciting research about the structure of the cosmos. But what might such a theory look like? What would it mean? And how close are we to getting there? In New Theories of Everything, John D. Barrow describes the ideas and controversies surrounding the ultimate explanation. Updating his earlier work Theories of Everything with the very latest theories and predictions, he tells of the M-theory of superstrings and multiverses, of speculations about the world as a computer program, and of new ideas of computation and complexity. But this is not solely a book about modern ideas in physics - Barrow also considers and reflects on the philosophical and cultural consequences of those ideas, and their implications for our own existence in the world. Far from there being a single theory uniquely specifying the constants and forces of nature, the picture today is of a vast landscape of different logically possible laws and constants in many dimensions, of which our own world is but a shadow: a tiny facet of a higher dimensional reality. But this is not to say we should give up in bewilderment: Barrow shows how many rich and illuminating theories and questions arise, and what this may mean for our understanding of our own place in the cosmos. |

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#### LibraryThing Review

Reseña de usuario - FabianMelMelGar - LibraryThingA great book by a great writer; but it's great only if you have an excellent layman's knowledge of science. The casual science reader will not be able to understand it, and a professional scientist may already know everything Barrow has to say. Leer reseña completa

#### NEW THEORIES OF EVERYTHING: The Quest for Ultimate Explanation

Reseña de usuario - KirkusCan any one theory account for everything in the universe?Barrow (Mathematics/Cambridge; The Infinite Book, 2005, etc.) gets right down to fundamental issues in addressing this central question in ... Leer reseña completa

### Índice

1 | |

2 Laws | 14 |

3 Initial conditions | 44 |

4 Forces and particles | 93 |

5 Constants of Nature | 110 |

6 Broken symmetries | 136 |

7 Organizing principles | 160 |

8 Selection effects | 192 |

9 Is pi really in the sky? | 202 |

247 | |

256 | |

### Otras ediciones - Ver todo

New Theories of Everything: The Quest for Ultimate Explanation John D. Barrow Vista previa restringida - 2008 |

### Términos y frases comunes

algorithmically compressible Anthropic Principle arithmetic atoms axioms behaviour Big Bang billion black hole century complexity complicated concept constants of Nature cosmological constant cosmologists determined dimensions of space discover effects Einstein’s electrons elementary particles energy entropy equations evolution evolve example exist expansion explain fact fine-structure constant finite forces of Nature fundamental future galaxies gauge theories geometry Gödel gravitational hence human idea infinite number infinity inflation initial conditions interactions intrinsically invariance inverse-square law laws of Nature logical mathematicians mathematics matter motion Newton’s Newtonian observed outcomes particular patterns phenomena philosophical physical world physicists picture possess possible predict principle problem properties quantities quantum mechanics question random reality regarded region result role scientific scientists sequence simple situation space-time string theory structure surface symmetry symmetry-breaking theorem Theory of Everything theory of relativity thermodynamics things truth ultimate understand Universe’s values visible universe