Wikipedia
Telexistence is fundamentally a concept named for the general technology that enables a human being to have a real-time sensation of being at a place other than where he or she actually exists, and being able to interact with the remote environment, which may be real, virtual, or a combination of both. It also refers to an advanced type of teleoperation system that enables an operator at the control to perform remote tasks dexterously with the feeling of existing in a surrogate robot working in a remote environment. Telexistence in the real environment through a virtual environment is also possible. This concept was first proposed by Susumu Tachi in Japan in 1980 S.Tachi, K.Tanie and K.Komoriya: Evaluation device of mobility aids for the blind,
Japanese Patent 1462696 filed on December 26, 1980. and 1981 as patents and the first report was published in Japanese in 1982 and in English in 1984.