“Keeping an open mind is a virtue,” Carl Sagan wrote in The Demon-Haunted World, the last book he published, but “not so open that your brains fall out…. I have a foreboding of an America when, clutching our crystals and nervously consulting our horoscopes, our critical faculties in decline, unable to distinguish between what feels good and what’s true, we slide, almost without noticing, back into superstition and darkness.” That was twenty years ago.” ― Kurt Andersen, Fantasyland: How America Went Haywire: A 500-Year History