Is it possible to have a smart discussion about whether people are getting dumber in casual, 300-word increments? Perhaps the worst offender is the essay by Erin Jackson, a stand-up comedian, which is neither smart nor funny and relies on phoned-in anecdote and hand-wavy syllogism to prop up her conclusion that people are getting dumber. But even in the essays that extol a more methodical approach to the question, like Steven Pinker's piece, we're left with appeals to evidence that must be taken on faith because there's no room to include them.