A swarm of drones

thick as flies . .

Sounds interesting and I'd like to watch it but something must be wrong/buggy with Adobe Flash Player because it won't play many YouTube videos lately.

I'd really like to see a formation of like, 100+ of them.

Let's hope Google doesn't get hold of them :)

You could put someone's EYE OUT like that. :o

are they autonomous or is there a master controller, programing involved?

I presume somebody had to program the figure-8 and pass-thru-window sorties.

They might have some sort of spacial awareness, but I'm sure there's some degree of programming involved in the formations (assuming they don't begin in formation)