Response to Bryan Roberts: A new perspective on T violation

It is surprising that the fundamental, microscopic laws of Nature are not invariant under time reversal. In his article, Three Merry Roads to T-Violation, Dr. Bryan Roberts provided a succinct summary of the theoretical frameworks normally used to interpret the results of the experiments that established this fact. They all rely on the detailed structure of quantum mechanics. In this 'response' to Dr. Robert's talk, I will show that these experiments can be interpreted using a much more general framework. Consequently, should quantum mechanics be eventually replaced by a new paradigm, e.g., because of quantum gravity, these experiments could still be used to argue that the microscopic laws violate T invariance. (C) 2014 Elsevier Ltd. All rights reserved.