Reading the linked press release, it does not seem like they are claiming A->B->A. Rather, they are claiming a suppersistion of two states, (A->B) and (B->A). I

Reading the linked press release, it does not seem like they are claiming A->B->A. Rather, they are claiming a suppersistion of two states, (A->B) and (B->A). In the same way quantum mechanics allows a particle to be in two states at the same time, it allows the ordering of events to be two states at the same time.