Dr Rick

The Federation Internationale Organ de la Vestigial is probably what you seek. Founded as a spin-off of the now-defunct International Atomic Energy Commission, its original purpose was to prevent the proliferation and spread of useless organs. However, world-wide political pressures from atheist-inspired dictatorships within the U.N. ultimately corrupted the committee, and its members now seek to actually increase the number of non-functional body parts.

Recent additions to the officially sanctioned list of vestigial organs have not been without controversy and have included Denise Richard's acting skills, the Pope's lower lip, and Dick Cheney's left ventricle.

[ April 14, 2002: Message edited by: rbochnermd ]</p>

ex-robot

You still missing my point by "natural". What in nature apart from your man-made display causes this "problem".
essentially, I was trying to re-state what I have been saying before that this problem doesn't occur without this man-made display from what I can tell. "trickery" may have been a bad choice of words.
That is what I was saying.(trying to say) They see fine in other situations. If this particular case was so bad for the human visual system, I would think other problems would be evident.

xr

excreationist

The monitor isn't the thing that causes the flickering - this can be printed out onto bright white paper and viewed in the sunlight. It is your eyes moving around that causes the flickering as the image changes as it goes into your peripheral vision. My point is that this pattern could appear on a bird and we would experience the same problem if we looked at it.
I don't know of any examples where this occurs in nature but on the other hand I've never formally studied biology so I don't have much knowledge about that area. Maybe there are some sea creatures that have a patterns like that. I mean there would be many thousands or even hundreds of thousands of patterns in nature.
So basically you're saying that when God *perfectly* designed people's visual systems, he assumed that they'd never see that pattern (and there would be variations as well, but this one is probably the most dramatic).
So even though it is possible that that pattern or a variation of it exists in nature, God gave us that problem anyway. Maybe he decided not to create certain patterns in nature because we had problems seeing them correctly.

The display isn't important. Try printing out this picture:
<a href="http://members.ozemail.com.au/~wenke/illusions/black_dots.jpg" target="_blank">http://members.ozemail.com.au/~wenke/illusions/black_dots.jpg</a>
And do it on photo quality card if possible and make the blacks dark and have it in the sun so the white is bright. The reason for having it on card is to try and not let diffuse light light-up the black from behind. You could keep a book below the paper to help this as well. Though it was printed with a computer it could have been a natural animal skin. If you drew it on some very white fur you'd still probably see the scintillating grid effect. So man-made displays (monitors) aren't required to experience this problem.

Well there would have been very strong survival pressures on people having very good eye-sight while they were hunter-gatherers. Our eye-sight is very well suited to us being hunter-gatherers. Do you think God designed us to be hunter-gatherers? As I said earlier, the technological progress in early Genesis was very rapid - surely God could have known that people wouldn't live in the natural environment all the time. And remember Matthew 25:34 which talks about a kingdom God created for people since the beginning of the world. This suggests buildings and things. After all, Cain, Adam's son, built a city.