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Since then I have had the opportunity to visit and speak with two of the meeting organizers. Rather than try to wait until a substantial body appears I intend to distribute short notes on interesting activities as I learn about them. Small lcd displays within give a three dimensional display of a computer generated scene. This information is passed to a computer that changes the helmet image in concert with the head's changing viewpoint. Instead of a helmet some systems use a very large display such as would be viewed while looking out the window of a plane or ship, but smaller displays are far cheaper and have other advantages.