Well I'm just annoyed because many people still say that the current 3D TVs dont bring anything, or that the technology with glasses will disappear soon. They think that someone will find a magic software trick to make it 3D without glasses, maybe by tracking eyes. But it is impossible, it is a misunderstanding on how stereoscopic 3D actually works. Current 3D technology is actually really good, though the glasses will surely get much lighter.
You're probably correct in saying that glasses won't disappear anytime soon, and it is impossible with eye/head tracking alone to achieve stereoscopic 3D, but I'd like to bet that sometime in the future a holographic display could be created. One that sends different images to different regions of the room, such that your left eye is literally seeing a different view than your right eye, without shutters or polarization to mimic it.
To truly get there, you'd have to actually change the path length of each ray, to allow your eyes' focus to agree with their convergence (a common complaint with current 3D, where the eyes are forced to focus on light coming from 3 meters away but converge on an object thats "1 meter" away.)
