Recording light so as to reproduce a three-dimensional image, invented by Dennis Gabor in 1947 and practical once lasers arrived in the 1960s.
Digital or holographic, because I also worked with holography, and I started to create telepresence art by combining telecommunications and robotics in the '80s as well. These bodies of work were cast aside, marginalized.
Eduardo Kac, Electric Dreams: Rebecca Allen, Analívia Cordeiro, Eduardo Kac