The World Brain was a disgusting disembodied brain genetically engineered by the Yuuzhan Vong. Ick. It later became friends with Jacen Solo. The World Brain was born on board a seed ship traveling to Coruscant, one of a dozen dhuryams (that's what the Vong called the icky pulsating brain critters). The dhuryams were each given a patch of land and telepathic control over a group of slaves charged with cleaning up the land, growing food and more icky Vong creatures, building houses and... okay, basically, each of the brains was basically playing Age of Empires in real life. Or maybe Starcraft, playing as the Zerg. This was part of Supreme Overlord Shimrra's plan: have the dhuryams compete against each other to find out which of them was the best micromanagement real-time strategy player, and