Quantum Physics

Copenhagen Interpretation: Niels Bohr’s combination of instrumentalism, anthropocentrism and studied ambiguity, used to avoid understanding quantum theory as being about reality. — David Deutsch, The Beginning of Infinity: Explanations That Transform the World
Quantum theory is, as I have said, one such theory. But the other three main strands of explanation through which we seek to understand the fabric of reality are all ‘high level’ from the point of view of quantum physics. They are the theory of evolution (primarily the evolution of living organisms), epistemology (the theory of knowledge) and the theory of computation (about computers and what they can and cannot, in principle, compute). — David Deutsch, The Fabric of Reality: Towards a Theory of Everything
Just as genes often work together in groups to achieve what we might think of as a single adaptation, so there are memeplexes consisting of several ideas which can, alternatively, be thought of as a single more complex idea, such as quantum theory or neo-Darwinism. — David Deutsch, The Beginning of Infinity: Explanations That Transform the World