Legitimate form of life

I tweeted this article about how Oliver Sacks conceives as difference not as a disability, but as a different set of abilities, but I wanted to share some more thoughts on it.

Maria Popova writes:

A voracious lifelong reader, Dr. Sacks had grown enchanted by the H.G. Wells short story “The Country of the Blind,” set in an isolated society where blindness prevailed for three centuries and where a lost Western traveller finds himself the aberrant one, afflicted with sight. Drawing on the Wells story, his own childhood experience of visual migraines that temporarily blunted his color perception, and his neurological work with a painter who had suddenly become colorblind, Dr. Sacks bridged two of his great literary and intellectual heroes — Wells and Darwin — and wondered whether there might exist, not in fiction but in geography, a real isolated culture where total colorblindness — or achromatopsia — had become a basic condition among the population.

Because such mutations are most easily contained in cultures isolated by sea, he reasoned that if such a society existed, it would have to be on an island. After tracking down the appropriate colleague to ask, he was surprised and thrilled to learn that one such island did indeed exist — Pingelap in the Caroline archipelago of Micronesia, where total colorblindness had been coloring the genetic pool for two centuries.
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Like all genetic deviations from the mean, colorblindness on Pingelap had emerged due to a formidable brush with randomness. In 1775, a typhoon decimated 90% of the people living on the island. Most of the remaining survivors eventually succumbed to a slow death of starvation, so that of the one thousand islanders only twenty remained. Several centuries earlier, the original settlers had brought to Pingelap the recessive gene for colorblindness, but because the population had been large enough, the odds of two carriers marrying and the gene manifesting in their children had been fairly low. Now, with a tiny but fertile group left with no recourse but inbreeding to repopulate the island, the recessive gene suddenly flourished into growing domination and total colorblindness was soon a common condition.



Oliver Sacks writes:

Colorblindness had existed on both Fuur and Pingelap for a century or more, and though both islands had been the subject of extensive genetic studies, there had been no human (so to speak, Wellsian) explorations of them, of what it might be like to be an achromatope in an achromatopic community — to be not only totally colorblind oneself, but to have, perhaps, colorblind parents and grandparents, neighbors and teachers, to be part of a culture where the entire concept of color might be missing, but where, instead, other forms of perception, of attention, might be amplified in compensation. I had a vision, only half fantastic, of an entire achromatopic culture with its own singular tastes, arts, cooking, and clothing — a culture where the sensorium, the imagination, took quite different forms from our own, and where “color” was so totally devoid of referents or meaning that there were no color names, no color metaphors, no language to express it; but (perhaps) a heightened language for the subtlest variations of texture and tone, all that the rest of us dismiss as “grey.”

Sacks brings a colleague, Knut Nordby, who happens to also be colorblind, and experiences the island very differently than Sacks:

For us, as color-normals, it was at first just a confusion of greens, whereas to Knut it was a polyphony of brightnesses, tonalities, shapes, and textures, easily identified and distinguished from each other.

The world wasn't just tailored made for the colorblind, the colorblind people also seemed to have a unique advantage over their counterparts:

The achromatopic children seemed to have developed very acute auditory and factual memories… [They] were oddly knowledgeable too about the colors of people’s clothing, and various objects around them — and often seemed to know what colors “went” with what… We could already observe in these achromatopic children in Mand how a sort of theoretical knowledge and know-how, a compensatory hypertrophy of curiosity and memory, were rapidly developing in reaction to their perceptual problems. They were learning to compensate cognitively for what they could not directly perceive or comprehend.

The best part of the video is at 2:55 where he tells the story of them asking how the colorblind could even tell when a banana was ripe, since they couldn't distinguish between green and yellow. They brought a green banana, and they sort of contemptuously thought -- this illustrates our point, they can't tell this banana is green. But the banana turned out to be ripe. They explained -- you're narrow minded, you would have said this banana wasn't ripe because you would only be focused on color, but they were focused on everything else about the banana -- texture, smell, etc. Similarly, a lot of people who rely on empathy have a hard time understanding how those without it could make the same sorts of judgments or choices for which the empaths rely on it so heavily. Not only can we make the same judgments and choices, we sometimes can get there more accurately without the empathy, because the emotions are not clouding our moral judgment.

The video continues, we do stigmatize people because people have characteristics that put them in conflict with others, but once the population has a large percentage of that type of person, they just seem normal. I think of the debate I got in with someone about which is more dangerous -- maleness, or sociopathy. In my mind there's an easy argument to make for maleness. If you took a female empath and made her a sociopath, she would be much less statistically likely to be a violent criminal than if you made her into a man. That's just the statistical difference between males and females in terms of propensity towards violence. But of course no one seriously advocates for the elimination of men from the human race. Since they are so prevalent, we think of their violent tendencies as being rather normal.

Sacks puts it this way:

There is a sort of critical level, so that if a tenth or a quarter of the population have some condition, it has to be accepted as a legitimate form of life and won’t be marginalized and, sometimes, won’t even be noticed.