Like many white people of a certain age, I first visited Harlem by mistake. I took the wrong subway and barely got out of the station: First one guy, then another, tried to shove me down the stairs. Thirty-two years later, walking past the gourmet markets, wine shops, and chain drugstores that are the sine qua non of change, I am struck by the Asians and Caucasians on their way to work, none scurrying with the head-down haste of the unwelcome. Harlem may still be the global capital of the African Diaspora, yet no court could have integrated it as efficiently as the lure of affordable Manhattan real estate. Nowadays, everyone takes the A train.
