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The essays in this book look at way in which the fundaments of physics might need to be changed in order to make progress towards a unified theory. They are based on the prize-winning essays submitted to the FQXi essay competition “Which of Our Basic Physical Assumptions Are Wrong?”, which drew over 270 entries. As Nobel Laureate physicist Philip W. Anderson realized, the key to understanding nature’s reality is not anything “magical”, but the right attitude, “the focus on asking the right questions, the willingness to try (and to discard) unconventional answers, the sensitive ear for phoniness, self-deception, bombast, and conventional but unproven assumptions.” The authors of the eighteen prize-winning essays have, where necessary, adapted their essays for the present volume so as to (a) incorporate the community feedback generated in the online discussion of the essays, (b) add new material that has come to light since their completion and (c) to ensure accessibility to a broad audience of readers with a basic grounding in physics. The Foundational Questions Institute, FQXi, catalyzes, supports, and disseminates research on questions at the foundations of physics and cosmology, particularly new frontiers and innovative ideas integral to a deep understanding of reality, but unlikely to be supported by conventional funding sources.

Discrete mathematics --- Mathematical statistics --- Mathematics --- Space research --- Cosmology --- Astrophysics --- History of physics --- Mathematical physics --- Classical mechanics. Field theory --- Statistical physics --- Physics --- astrofysica --- grafentheorie --- theoretische fysica --- statistiek --- wiskunde --- fysica --- ruimte (astronomie) --- kosmologie --- dynamica

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The essays in this book look at the question of whether physics can be based on information, or – as John Wheeler phrased it – whether we can get “It from Bit”.  They are based on the prize-winning essays submitted to the FQXi essay competition of the same name, which drew over 180 entries. The eighteen contributions address topics as diverse as quantum foundations, entropy conservation, nonlinear logic and countable spacetime. Together they provide stimulating reading for all physics aficionados interested in the possible role(s) of information in the laws of nature. The Foundational Questions Institute, FQXi, catalyzes, supports, and disseminates research on questions at the foundations of physics and cosmology, particularly new frontiers and innovative ideas integral to a deep understanding of reality, but unlikely to be supported by conventional funding sources.

Physics. --- Theoretical, Mathematical and Computational Physics. --- History and Philosophical Foundations of Physics. --- Quantum Information Technology, Spintronics. --- Data Structures, Cryptology and Information Theory. --- Quantum Computing. --- Data structures (Computer science). --- Physique --- Structures de données (Informatique) --- Data structures (Computer scienc. --- Engineering & Applied Sciences --- Applied Physics --- Information technology. --- Computer science. --- Quantum theory. --- Information storage and retrieval systems --- Quantum dynamics --- Quantum mechanics --- Quantum physics --- Informatics --- IT (Information technology) --- Natural philosophy --- Philosophy, Natural --- Quantum computers. --- Spintronics. --- Physical sciences --- Dynamics --- Physics --- Mechanics --- Thermodynamics --- Science --- Technology --- Telematics --- Information superhighway --- Knowledge management --- Data Structures and Information Theory. --- Mathematical physics. --- Information structures (Computer science) --- Structures, Data (Computer science) --- Structures, Information (Computer science) --- Electronic data processing --- File organization (Computer science) --- Abstract data types (Computer science) --- Fluxtronics --- Magnetoelectronics --- Spin electronics --- Spinelectronics --- Microelectronics --- Nanotechnology --- Computers --- Physical mathematics --- Mathematics

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Science --- Philosophy of science --- Operational research. Game theory --- Probability theory --- Mathematical physics --- waarschijnlijkheidstheorie --- theoretische fysica --- stochastische analyse --- wetenschap --- wetenschapsfilosofie --- wiskunde --- fysica --- kansrekening