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

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.