“It starts like this. I am picking up my daughter from day camp on the shores of Lake Michigan and taking her to Wrigley Field. Zoë likes the Cubs so I thought I would surprise her with a game. It’s a pretty day, and as we bike along the brownstone streets of Chicago’s Lakeview neighborhood, my daughter on the bike-seat behind me with her curly hair blowing in the wind, we are the vision of summer.”