“An AI Stephen Hawking would look like him”: Holographic avatars of long-dead celebrity scientists could work with — or compete with living university lecturers

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It used to be when popstars died, or retired from performing, that you could no longer see them live, but holographic technology has changed all that. 

A growing number of deceased celebrities, from Tupac to Elvis, have been brought back to life as holograms, and the technology firms may also be set to enliven the education sector.