Every year, as the leaves are falling, I see in my mind's eye how the streets I walk through every day would change if the towns and cities were abandoned, and the leaves left to fall undisturbed for five, ten, twenty years. Horse chestnut trees growing in the middle of the road. Buddleia arching through broken windows. A glimpse of a fox beneath a rusting car. How long would it take for nature to reclaim the landscape, like the sides of a scar knitting together? How long would it take for the places I live and work to soften into ruins?