SEAN CARROLL is a research professor at Caltech and the author of The Particle at the End of the Universe, which won the 2013 Royal Society Winton Prize, and_ From Eternity to Here: The Quest for the Ultimate Theory of Time_. He has recently been awarded a Guggenheim Fellowship, the Gemant Award from the American Institute of Physics, and the Emperor Has No Clothes Award from the Freedom From Religion Foundation. The Conversation: https://www.edge.org/conversation/sean_carroll-layers-of-reality