Why we need to reconstruct the universe

• Autores: David Deutsch, Chiara Marletto
• Localización: New scientist, ISSN 0262-4079, Nº. 2970, 2014, págs. 30-31
• Idioma: inglés
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• Resumen

  • The most fundamental theories in physics, provide a meaning for information or even a way of measuring it. And it has a counterfactual character: a message cannot carry information unless a different message is also possible. Statements about information were therefore long regarded in physics as second-class, non-fundamental approximations. Information itself was considered an a priori abstraction like Euclid's perfect triangles and circles, whose physical instantiations are inevitably approximate. Here, Deutsch and Marletto talk about the current theories of physics