I was surprised to see someone being interviewed by "hologram" earlier on the election c0verage. There were a few news articles about it by the time I got to looking including this amusing blog post. It made me laugh so I decided it was worth pointing out.
All the articles mentioned that the hologram was made by filming the person being interviewed in a "tent" with thirty some cameras, but the part I was curious about- the projection- wasn't even hinted at.
Oh well.. maybe they will explain some other time.