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Comment by daveungerer | Hacker News Reader

Did we read the same article? 2D TV doesn't trick the brain into thinking it's 3D. Your brain can clearly see it's 2D. When you view fake 3D, the brain thinks it's 3D. But now that your brain is in 3D mode, it has to turn off processing for a lot of cues it would normally take into account, due to the fake 3D not being a complete simulation of reality.

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The article says there are 10 depth perception cues. ONE of them is showing different images to each eye. 2D images do have some of the 10 cues. What is special about this ONE cue and not the ones that a 2D image has?

I.e., why does your brain turn off processing for the differing images to each eye cue but not for the parralax cue, etc?

What's special about this ONE cue? Ummm... how about the fact that it can trick your brain into believing it's viewing 3D without including most of the others? I mean... you just said a 2D image doesn't have this one cue, but has the others. That, by definition, makes it special.

But your second paragraph show's me this is all based on confusion. The parallax cue and processing different images for each eye are the same thing, not 2 different things as you're implying. And that's the one of the cues that's NOT turned off.

I'm not defending what the author is saying. I just feel you should read the article again, because your statements don't seem to address anything said in the article.

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