Next, let's talk holograms. Concerts headlined by simulations of dead or absent pop stars have captured the public imagination for more than a decade. People are still talking about the late Tupac ...

Holograms are created with a single OLED pixel, bringing phones and glasses closer to projecting real 3D images without the ...

The room is dark. There's a quiet whirr of fans. Nature sounds play from unseen speakers. One wall is decorated with what I assume is artificial greenery. In the center, a head. Blue and purple and ...