What did I just see...?

Quadrocopter

Quad/Pent/Hexocopters are getting more agile almost by the day. But when you combine their airborne prowess with real-time computing, they're capable of absolutely mind-blowing dexterity, and - seemingly - intelligence

We're not sure whether this example is self-explanatory or whether it completely defies any sort of explanation. Just make sure there's enough room for your jaw to drop safely when you watch it.