“[The hypothesis] is unlikely to be true, … [and] since no one knows how to test it, the idea is perhaps not truly scientific at all. Those are valid criticisms, but the main reason we should hold out is that it is incoherent, both philosophically and logically. There could be no better contender for Wolfgang Pauli’s famous put-down: it is not even wrong. And yet, it attracts both publicity and extraordinarily confident endorsement.”