I remember seeing glasses-free 3D displays from sharp many years ago and thinking this would be everywhere within 2 years. The technology was used in some asian

I remember seeing glasses-free 3D displays from sharp many years ago and thinking this would be everywhere within 2 years. The technology was used in some asian novelty pre-smartphone handsets and in one gameboy model but then disappeared. This was not light field technology like the Looking glass, so only one angle and one viewer could really enjoy it, but i assume the market will behave pretty similar this time: After the novelty wore off, nearly every single user i talked to preferred 2D displays if it had even slightly increased display clarity, brightness and resolution. Of course that insight sounds nearly trivial, but what really surprised me was the extreme degree of this preference: People were not even interested enough to make 3d Monitors a second mainstream option next to super retina 2d displays or whatever, but the whole market did not even come to existence outside very small niches. In a completely different context i was extremely surprised how many early "VR" experiences did not even mention they were just in 2D with head-tracking and no one except me seemed to find that odd or super annoying. It is as if no one really cares for 3D.