Robot builders work together to create structures much bigger than themselves

If you've ever read a novel from Iain M. Banks's Culture series, then you'll know that builder-bots play a huge role in his vision of the future: A future in which houses, cities and even entire planets can be built on the cheap by armies of drones. In a very modest way, something like this is already possible, thanks to a team of researchers from Catalonia's Insitute of Advanced Architecture.

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