The chapter concludes the book with some reflections on the future of physics in the light of the possibility that we may neither ever be able to discard multiverse theories as pseudoscience nor obtain compelling evidence in favor of some multiverse theory or for the correct theory of fundamental physics as determinately “not” being a multiverse theory. We may never find out, in other words, whether there are other universes with different parameters. Our knowledge of physics “at large” – just as our knowledge of physics “at small” – may forever be limited.