Big data technologies and their role in developing virtual worlds like the Metaverse are explored. The document discusses how technologies like digital humans, digital twins, brain-computer interfaces, blockchain, and artificial intelligence will shape the future of the Metaverse. Specifically, brain-computer interfaces that enhance immersive user experiences through thought will be increasingly important to Metaverse development. While current Metaverses imitate the real world, future versions may diverge significantly from physical reality.