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We can make computer controlled, real-time holographic displays now? That seems like bigger news than a rockstar.

Isn't that the holy grail of 3D displays?

It's still just a projection onto some sort of medium.

There is a brute force approach.

Recent radiohead concerts had crude voxel displays based on towers of LEDs; you could probably scale it down to a character like this.

NiN did some similar stuff, but fewer layers: http://florago.net/notes/?p=41