Computability and physical theories

摘要: The familiar theories of physics have the feature that application theory to make predictions in specific circumstances can be done by means an algorithm. We propose a more precise formulation this feature—one based on issue whether or not physically measurable numbers predicted are computable mathematical sense. Applying one approach quantum gravity, there found indications may exist no such algorithms case. Finally, we discuss existence algorithm implement should adopted as criterion for acceptable physical theories. “Can it then is... something use unraveling universe learned from philosophy computer design?” —J. A. Wheeler