I think I recall something like this posted some time ago. It is an interesting idea, with a few caveats : * At least in the video at the bottom of the article

I think I recall something like this posted some time ago. It is an interesting idea, with a few caveats : * At least in the video at the bottom of the article, it is not actually a swarm - there is never more than one robot doing each task (pickup, place), and one can see them waiting to get a 'workzone' cleared before moving in. In a swarm I'd imagine each flier working independently, with interaction limited to collision avoidance and occasional cooperation when needed(lift heavier block, etc). * I hardly see such bots battling even moderate windspeeds in a real-life construction project, while carying any kind of real-life construction material block - assuming they can even lift one. * Intuitively, I'd say this way of building is very energy-inefficient (in terms of power used by the drones) - but I'd love to see some actual figures.