Forum Moderator Alan Guth talks about the arrow of time, fine-tuning, and infinite phase space. Explore more: More from Mind Matter Conference in Tuscany, with Sean Carroll on Causality and the Arrow of Time The Quantum State of the Universe - A Dialogue with Sean Carroll and Alan Guth: Sean Carroll and Alan Guth discuss the quantum state of the universe. " Quantum Gravity and Indefinite Causal Structure with Dr. Lucien Hardy ": Physicist Lucien Hardy discusses Quantum Gravity and the concept of Indefinite Causal Structure Keywords: Arrow of time, Infinite phase space, Guth