I should mention that I spent I lot of time trying to figure out how to describe cities at night. I wanted to avoid descriptions that carried a lot judgmental weight. I wound up with both flowers and fungus, because they do look a little like an uncleaned surface in a humid climate, but I didn't want to be all "The HUMAN PRESENCE is like a VILE GROWTH upon the FACE of the EARTH."

But mostly, and I thought about this on the way back, they look like circuitry. Or I guess circuitry looks like cities.