2025 May 4 One of my favorite joys is exploring a city late at night on rollerblades. I’ve been doing it fairly regularly for about 10 years now, first in Boston and then in NYC. Every time day turns to night and back again a city takes a breath. At night people flow out or huddle up in buildings, leaving the streets clear for the people and machines that reset the urban environment for the next day. Garbage trucks lumber about, workers unload fresh stock at stores, repairs happen in subway tunn...