Flying Robo-Builders

Wow, they actually did it:

I expected the robots to be hyper-self-conscious about the other robots criticising their work, and so becoming a overcritical themselves so tensions built up and built up, and a single misjudged comment set off a huge quadracopter fight and when the people in the lab-coats came in the the next morning there’s loads of quadracopter feathers everywhere and all of them are gone except for one fat one.

But apparently not.