Michael Heim, The Nerd and the Noosphere.
Heim: "We are approaching...multiple virtual worlds. Online virtual worlds will be 3D immersive, interactive sensory environments." Heim is troubled by the earthy persistence of our "primary bodies" as virtual worlds proliferate for us. He offers us a possible resolution by suggesting that we "learn to overlap worlds." "The worlds of the primary body and the cyberbody need to reinforce one another." Heim gives us a method of access into the "various modes of being" commanded by Commandment VIII. From a humanistic viewpoint (were there one that held water), we congratulate Heim on keeping his eye on the flesh and blood body and cautioning against a flight of cyber-fancy that ignores its homely but essential role in all of this.