There is a term you may have heard in the 1980s and '90s. It held the promise of the ultimate handshake between technology and entertainment. The term defined an idea that became very popular and actually brushed against pop culture for a time - they even made a movie or two about it. But after its initial surge of popularity, it became obvious that the technology needed to bring this concept into the hands of the public wouldn't be available for some time. The term's popularity waned, and now it's gone out of style. The term was virtual reality.