People will experience 3D virtual reality through glasses and contact lenses that will beam images directly to their retinas (retinal display). Coupled with an auditory source (headphones), users will be able to remotely communicate with other people and access the Internet.
First development of this technologies started to appear in 2011.
Kurzweil, Ray. 1999. The age of spiritual machines: when computers exceed human intelligence. New York: Viking.