Hi! I’m Caspar Hare. I’m a Professor of Philosophy at MIT. I work on ethics, rationality and I am currently running an edX course: Introduction to Philosophy: God, Knowledge and Consciousness, which has recently introduced “instructor-grading” (you can read more about it here and here.) Ask Me Anything! Proof: https://twitter.com/2400xPhilosophy/status/770667051941789696 EDIT: Thanks for a marvelous discussion! I have to go. Keep on philosophizing! ~Caspar