In episode 9, we bring back "The Professor" (our contributor Will Brian) to chat with us about physicist Michio Kaku's book "Physics of the Future: How Science Will Shape Human Destiny and Our Daily Lives in the Year 2100." Will shares his own opinions and also responds to criticisms of the book. We cover everything from Elon Musk's concerns about artificial intelligence to the exciting potential of cold fusion. You don't need to be a budding scientist to find this conversation fascinating! Let us know your thoughts via Twitter or Instagram.