Honest Abe, a self-educated, lifelong learner, dutifully went outside to look up at the night sky. Invoking his knowledge of astronomy, he noticed that all the grand constellations were still there, intact—Ursa Major, Leo, Taurus, Orion. Whatever was falling, it wasn’t the stars, and so he rationally concluded that a biblical prophecy of doom was not underway,13 and promptly went back to bed.