BitTorrent! You can use the 's' and 'p' keys to add new seeds and peers to the swarm. Hitting 'r' will remove one of the seeds or peers at random, but it takes a few seconds before it activates, just like the original. This visualization originally started off at aphid.org but that site doesn't seem to be up anymore. Jeff Atwood updated it to work with more recent versions of Processing (notably t