They were utterly fearless. I did not understand it until I looked out on the street. That was where I saw white parents pushing double-wide strollers down gentrifying Harlem boulevards in T-shirts and jogging shorts. Or I saw them lost in conversation with each other, mother and father, while their sons commanded entire sidewalks with their tricycles. The galaxy belonged to them, and as terror was communicated to our children, I saw mastery communicated to theirs.