Constructor theory is a proposal for a new mode of explanation in fundamental physics in the language of ergodic theory, developed by physicists David Deutsch and Chiara Marletto, at the University of Oxford, since 2012.
[3][4] The fundamental elements of the theory are tasks: the abstract specifications of transformations as input–output pairs of attributes.
A task is impossible if there is a law of physics that forbids its being performed with arbitrarily high accuracy, and possible otherwise.
[4][5] It draws together ideas from diverse areas, including thermodynamics, statistical mechanics, information theory, and quantum computation.
[6][7] According to Deutsch, current theories of physics, based on quantum mechanics, do not adequately explain why some transformations between states of being are possible and some are not.
[1] Constructor theory provides an explanatory framework built on the transformations themselves, rather than the components.
However, the link between information and such physical ideas as the entropy in a thermodynamic system is so strong that they are sometimes identified.