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Comment 3Damage (Score 1) 132

IRC the problem for any 3D screen-based system is the fact that
your eyes need to both

1) focus on the screen while simultaneously

2) converging (right and left eyes pointing) to a locus behind (or of the screen).

This is an unnatural thing to do - a bit like crossing your eyes without noticing.
If you do it for a long time it has a lasting aftereffect where you can't see real world distances properly for some hours afterwards.

If your eyes are still learning to make sense of the world (like children's) they can be fooled in learning wrong things about the world - such as it is normal to focus at one depth and converge at another - thus doing permanent damage

As first commented by me here:

http://www.guardian.co.uk/technology/2011/jan/20/nintendo-3ds-could-harm-child-eyes-claim?commentpage=1#comment-9235640

Comment To Err is Human - To Forgive Is Divine (Score 1) 311

This was news back in 2005 Practical Application of Optical Illusions: errare humanum est.

As a failing peculiar to animate visual systems, visual illusions might be used to distinguish humans from "computer bots" ... This approach inverts, and complements, the logic of the Turing test: not requiring evidence of an intelligent capacity equivalent to that of human beings, but rather that of a characteristic human failing.

Submission + - I fought the Law n' Science won! (bmj.com)

Forget4it writes: "The science writer Simon Singh has won a landmark victory at the Court of Appeal in London giving stronger free speech protection to writers facing libel threats for raising issues of scientific controversy." the BMJ reports.

Comment Needle Eye Camel Bill (Score 1) 413

Still a little way go before Bill's chances improve to pass through the eye of a needle:
http://www.biblegateway.com/passage/?search=mark%2010:24-10:25&version=KJV

But it looks like he and his wife are at least giving it a try:
http://www.gatesfoundation.org/

Camel: "There's More Than One Way To Do It."
Needle: "No there isn't!"

Comment Degrees of gullibility (Score 1) 1051

Gullibility is in the eye of the beholder.
Close the eye and you lose that gullibility.
Indiscriminate advertising get's what it merits
if it treats all as equally gullible.

All should have the right to divert their eyes away from what is trying to take advantage of them.
Some people have a high tolerance to this "being taken as gullible";
Others less; It's a question of degrees:
Ad-blocking is for those, like me, who are disturbed by indiscriminate advertising
in the same way as Cayce was allergic to brand in Pattern Recognition by William Gibson

Comment Robots don't readily suffer illusions (Score 1) 197

Since robots don't readily suffer illusions ... As a failing peculiar to animate visual systems, visual illusions might be used to distinguish humans from "computer bots", or any other artificial intelligence empowered with a visual capacity. Any such entity is unlikely to suffer the same illusions as our own, unless, of course, it has been specifically engineered to do so. This approach inverts, and complements, the logic of the Turing test: not requiring evidence of an intelligent capacity equivalent to that of human beings, but rather that of a characteristic human failing.

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