As part of their series "The Idiot's Guide to Smart People," Above Average explains why smart people love Malcolm Gladwell. Gladwell is the author of such bestsellers as Outliers, The Tipping Point, and The Outlying Pointers. But as the creators of the video explain, it's not that he has a lot of pithy but ultimately meaningless things to say, it's the way he says them. 

Actually, fine, it's his hair. His hair makes him seem smart. 

Sources: Above Average