The average scientist’s acquaintance with philosophy tends to be of the passing variety. This is a great pity. Deep-rooted, seemingly intractable problems in foundational theoretical physics – the physics of matter and radiation, space, time and the Universe – have now frustrated progress for 50 years or more. We’re living through a period in the history of foundational physics in which ideas about nature are cheap, but gathering the empirical facts needed to show that these ideas have anything at all to do with the real world has become extraordinarily expensive, protracted and time-consuming, and without guarantee of success. – Aeon