[AstralStorm]

Unfortunately the hardware to do this is harder than a LCD or even DLP. Otherwise we'd have it already.

Galvo projectors as used in hololens etc. are vector, but tiny projectors aimed at retina are extremely hard to pull off, even ones aimed at glasses are very hard and lousy. Aiming them at a wall is ok though.

[andrewla]

I'm not suggesting a vector display. The VT100 had 240 scan lines and 768 dots; half of this would be fine.