optic QUOTES

1 " Perception requires imagination because the data people encounter in their lives are never complete and always equivocal. For example, most people consider that the greatest evidence of an event one can obtain is to see it with their own eyes, and in a court of law little is held in more esteem than eyewitness testimony. Yet if you asked to display for a court a video of the same quality as the unprocessed data catptured on the retina of a human eye, the judge might wonder what you were tryig to put over. For one thing, the view will have a blind spot where the optic nerve attaches to the retina. Moreover, the only part of our field of vision with good resolution is a narrow area of about 1 degree of visual angle around the retina’s center, an area the width of our thumb as it looks when held at arm’s length. Outside that region, resolution drops off sharply. To compensate, we constantly move our eyes to bring the sharper region to bear on different portions of the scene we wish to observe. And so the pattern of raw data sent to the brain is a shaky, badly pixilated picture with a hole in it. Fortunately the brain processes the data, combining input from both eyes, filling in gaps on the assumption that the visual properties of neighboring locations are similar and interpolating. The result - at least until age, injury, disease, or an excess of mai tais takes its toll - is a happy human being suffering from the compelling illusion that his or her vision is sharp and clear.

We also use our imagination and take shortcuts to fill gaps in patterns of nonvisual data. As with visual input, we draw conclusions and make judgments based on uncertain and incomplete information, and we conclude, when we are done analyzing the patterns, that out “picture” is clear and accurate. But is it? "

― Leonard Mlodinow , The Drunkard's Walk: How Randomness Rules Our Lives

3 " At this moment, in this place, the shifting action potential in my neurons cascade into certain arrangements, patterns, thoughts; they flow down my spine, branch into my arms, my fingers, until muscles twitch and thought is translated into motion; mechanical levers are pressed; electrons are rearranged; marks are made on paper.

At another time, in another place, light strikes the marks, reflects into a pair of high-precision optical instruments sculpted by nature after billions of years of random mutations; upside-down images are formed against two screens made up of millions of light-sensitive cells, which translate light into electrical pulses that go up the optic nerves, cross the chiasm, down the optic tracts, and into the visual cortex, where the pulses are reassembled into letters, punctuation marks, words, sentences, vehicles, tenors, thoughts.

The entire system seems fragile, preposterous, science fictional. "

― Ken Liu , The Paper Menagerie and Other Stories

5 " ...ideas are definitely unstable, they not only CAN be misused, they invite misuse--and the better the idea the more volatile it is. That's because only the better ideas turn into dogma, and it is this process whereby a fresh, stimulating, humanly helpful idea is changed into robot dogma that is deadly. In terms of hazardous vectors released, the transformation of ideas into dogma rivals the transformation of hydrogen into helium, uranium into lead, or innocence into corruption. And it is nearly as relentless.The problem starts at the secondary level, not with the originator or developer of the idea but with the people who are attracted by it, who adopt it, who cling to it until their last nail breaks, and who invariably lack the overview, flexibility, imagination, and most importantly, sense of humor, to maintain it in the spirit in which it was hatched. Ideas are made by masters, dogma by disciples, and the Buddha is always killed on the road.There is a particularly unattractive and discouragingly common affliction called tunnel vision, which, for all the misery it causes, ought to top the job list at the World Health Organization. Tunnel vision is a disease in which perception is restricted by ignorance and distorted by vested interest. Tunnel vision is caused by an optic fungus that multiplies when the brain is less energetic than the ego. It is complicated by exposure to politics. When a good idea is run through the filters and compressors of ordinary tunnel vision, it not only comes out reduced in scale and value but in its new dogmatic configuration produces effects the opposite of those for which it originally was intended.That is how the loving ideas of Jesus Christ became the sinister cliches of Christianity. That is why virtually every revolution in history has failed: the oppressed, as soon as they seize power, turn into the oppressors, resorting to totalitarian tactics to " protect the revolution." That is why minorities seeking the abolition of prejudice become intolerant, minorities seeking peace become militant, minorities seeking equality become self-righteous, and minorities seeking liberation become hostile (a tight asshole being the first symptom of self-repression). "

7 " [Howard's] eyes were open and very clear. I'd forgotten what a beautiful gray they were--illness and medicine had regularly glazed them over; now they were bright and attentive, and he was watching me, consciously, through long lashes. Lungs, heart may have stopped but the optic nerves were still sending messages to a brain which, those who should know tell us, does not immediately shut down. So we stared at each other at the end... 'Can you hear me?' I asked him. 'I know you can see me.' Although there was no breath for speech, he now had a sort of wry wiseguy from the Bronx expression on his face which said clearly to me who knew all his expressions, 'So this is the big fucking deal everyone goes on about. "

― Gore Vidal , Point to Point Navigation