There’s something unsettling about watching 1,000 robots execute a perfectly choreographed routine. The entire demonstration makes it a bit too easy to forget that humans, researchers at Harvard University, provided the algorithms that allowed them to accomplish various formations. We created a swarm robot designed specifically to work in large groups, which was key to accomplishing this, said Michael Rubenstein, an electrical engineer at Harvard University who worked on the project, which is described in Science today, in an email to The Verge.