We exit the Four Seasons Hotel into the gloomy afternoon, and I fall into a leisurely pace beside him as we hit the sidewalk. It’s wet and muggy and gray. The air is cooler than the previous couple of days, forcing me to jog energetically to get warm. We stretched in the elevator, but I’m still feeling stiff.

“Trying to race me?” he grins and pulls up his hood against the rain. The street is quiet and practically deserted, yet picturesque despite the overcast ...