Interesting article in the Washington Post conjecturing why smart people appear to be happier with fewer friends. Or, as I interpret it, fewer social obligations. The sociologists interviewed guess it might be because smarter people have bigger goals, like writing a novel or curing cancer, which friendships can distract from. Others guess that smarter people are better equipped to adapt to dense, urban environments and many interactions with many people. But my guess is that it is the social obligations that come with being smart. I remember a smart friend of mine, a lawyer, complaining after a very frustrating day that her job was to be smart and competent, for people who were neither smart nor competent, and it was wearing on her.