The big questions of philosophy, simmering since antiquity, still press upon us as they did the Athenians of old (and all ancient people who have philosophized): what obligations do we really owe to family, friends, or strangers? Do we live as free agents or beings controlled by fate or the gods (or genes or a computer simulation)? What is a good life? How do we create societies that maximize freedom and happiness (or whatever ultimate values we hold dear)? What is language, what is art, and where did they come from?
These questions may not be...