Sounds like science fiction to me - more exactly, like Star Trek's Holodeck. For educational purposes, this could be a major step forward: Imagine schools and universities equipped with such devices. Instead of listening to a lecturer about Einstein, Gaius Caesar or the Battle of Verdun, you could actually "be" there, experience it yourself, talk to the persons involved etc.
Max-Planck-Gesellschaft: CyberWalk
Max-Planck-Gesellschaft: CyberWalk