towers growing at night

"It´s so strange. You know? Since the quake."
"But they've built it all back now. Haven't they?"
"Sure, but they did it all so fast, mostly with that nanotech, that just grows. Eddie got in there before the dust had settled. Told me you could see those towers growing at night. Rooms up top like a honeycomb, and walls just sealing themselves over, one after another. Said it was like watching a candle melt, but in reverse. That's too scary, doesn't make a sound."

William Gibson, Idoru.