Radio is the playground of coincidence.

In these fast and fickle times, it’s nice to know that there are some things you can always count on: the enduring brilliance of the last page of The Great Gatsby; the near-religious harmonies of the Beach Boys’ “California Girls”; and the lifelong friendship of Matt Damon and Ben Affleck.

Being a nerd, which is to say going too far and caring too much about a subject, is the best way to make friends I know.

But when I am around strangers, I turn into a conversational Mount St. Helens. I'm dormant, dormant, quiet, quiet, old-guy loners build log cabins on the slopes of my silence and then, boom, it's 1980. Once I erupt, they'll be wiping my verbal ashes off their windshields as far away as North Dakota.

Clemenza's overriding responsibility is to his family. He takes a moment out of his routine madness to remember that he had promised his wife that he would bring dessert home. His instruction to his partner in crime is an entire moral manifesto in six little words: 'Leave the gun. Take the cannoli.

American history is a quagmire, and the more one knows, the quaggier the mire gets.

Being a nerd, which is to say going too far and caring too much about a subject, is the best way to make friends I know. For me, the spark that turns an acquaintance into a friend has usually been kindled by some shared enthusiasm . . . At fifteen, I couldn't say two words about the weather or how I was doing, but I could come up with a paragraph or two about the album Charlie Parker with Strings. In high school, I made the first real friends I ever had because one of them came up to me at lunch and started talking about the Cure.