America fascinated me as America fascinates every newcomer. Nineteen years old and fleeing the study of medicine at my Nigerian university, I longed to be a writer, to live a life of the mind. From my first days, I watched and read and learned. I was struck by the excess and the newness of America, by its flagrant contradictions, but mostly by how identity as an idea shaped so much of American life....... Shortly after the Black American George Floyd was murdered by a White police officer, a woman told me she had just read Americanah. “You are a prophet;...