 This multiple sensing was so intensely experienced at times, that Popper could speak of it as an immersive virtual reality (VR).In his book "From Technological to Virtual Art", Popper traces the development of immersive, interactive new media art from its historical antecedents through today's digital art, computer art, cybernetic art, multimedia and net art.Popper shows that contemporary virtual art is a further refinement of the technological art of the late twentieth century - and also a departure from it.