How interesting. I've never gotten a headache or experienced other problems with 3D movies, but the phenomenon Murch discusses may explain why I can never remember the depth feeling "real" the way a 2D image does. I've only seen Avatar and Tron in 3D, and in both cases I enjoyed the 3D effect when I was watching it, but in neither case can I think back and remember what it actually looked like; it's sort of like the 3D effect didn't "really" happen. If there's a fundamental cognitive disconnect about how we process the image, though, that makes sense.
Cue the usual "we must defend 3D at all times" brigade – which, actually, is pretty much just Dennis – to glibly dismiss the article in 5, 4, 3, 2...
Cue the usual "we must defend 3D at all times" brigade – which, actually, is pretty much just Dennis – to glibly dismiss the article in 5, 4, 3, 2...