Prolongevity
and Cancer
Fears of a
"Gerontocracy"
One of the fears that's often expressed in conjunction with
life extension is that a gerontocracy of genetically optimized elders would
develop that would keep the rest of the population enthralled.
In discussing a gerontology of genetically optimized elders,
we're talking about an hereditary aristocracy. Hereditary aristocracies were
ascendant from about 3,000 B. C. in Mesopotamia and Egypt until about 200 years
ago. The reason we no longer have heredity blue-bloods is political rather than
biological. It's (1) a less effective system than a more-democratic social
surround, and (2) most people don't want it. What genetic engineering
could bring to this concept of an hereditary aristocracy is the
ability to genetically select for presumably-desirable traits more rapidly and
acceptably than can be done using selective breeding. Furthermore, undesirable
ailments that arise when there is inbreeding could be detected and sidestepped,
so that the aristocracy could intermarry without having to worry about
hereditary diseases like hemophilia. However, this has nothing to do with life
extension but would be a beneficiary of our growing understanding of genetics.
If it happens, I think it will be a social or political retrogression rather
than anything recently enabled by genetic engineering.
It's also the case that I think that, to a degree, we
currently live in a gerontocracy, and always have. Societies have always drawn
upon the presumed seasoned wisdom of the Elders of the Tribe, even back into the
Stone Age. Societies are led by individuals in their 40's, 50's, and 60's,
rather than those in their 20's.
Are we run by a wealthy gerontocracy today? I don't know
enough to try to answer that question even for myself.
What about breeding supermen and superwomen?
We've known how to breed plants and animals for millennia. It
seems to me that this could have done that at any time since the dawn of
civilization. There was some ominous talk about sterilizing the mentally
defective, and about breeding super-people in the 1920's. It didn't get very
far, especially after Hitler showed what eugenics would be. Who's to decide
which traits are desirable and which are not? Whose children are desirable, and whose children aren't? Whose wives or husbands
should be excluded?
The idea of genetically engineering a cadre of
"super-people" seems to me to be no different from breeding a cadre of
"super-people". It's something society has opted not to do.
I doubt that a small, select group could take possession of
genetic engineering to the exclusion of the rest of society. If a small, select
group were to try to genetically engineer its offspring to be smarter,
better-looking and more athletic than the rest of us, I suspect the rest of us
would be right in there with them, genetically engineering our issue to be as
bright, good-looking and athletic as their progeny.
Turning to
life extension:
We've had a near-doubling of the
average life span over the past century, from 47 in 1900 to 77 in 2000, so we've
already experienced a 1.65 increase in life expectancy. What effects has this
had upon society? Has it led to a gerontocracy of genetically optimized elders?
In 20 years, will the Baby Boomers become a gerontocracy of genetically
optimized elders?
I think it's important that we ensure that life extension
technology remains in the public domain, and is available to all. Today, life
extension is primarily effected through body maintenance practices, and medical
and dental care. That's in the public domain, but it's not equally available to
all, and my guess would be that it won't ever be. "Equally available to
all" is a perfect ideal that, I should think, won't be realized in the real
world.
Eliminating hereditary diseases such as Huntingdon's Chorea
or cystic fibrosis is another kind of question. I suspect that it will be
treated like the elimination of smallpox or whooping cough. One way to proceed
that wouldn't involve genetic manipulation would be to screen fertilized
embryos, mapping the genome of one of its cells, and aborting those with fatal or crippling genes. This would
substitute selection for genetic modification. Over time, carriers of fatal
genes would probably tend to be bred out of the population, but not through
genetic modification.
"Designer genes", in which parents decide to give
their children advantages such as good looks, higher intelligence, and stable,
positive personalities, is something that, I think, will be considered unethical
at first. Long-term, I can imagine that this might happen. I could imagine an
arms race among parents to give their children the best genes money can buy (not
that they would necessarily be expensive).
But I should think that it's difficult to predict the social
future. The science fiction
writers whose works garner attention are generally those who write about
dystopias like "1984" and "Animal Farm". The various futures foreseen by science fiction writers have not
mirrored the social realities that have actually developed, perhaps in part,
because of the warnings that their novels have broadcast..
To Be
Continued
1/23/2002:Stem
Cells For Eggs And Sperm Also Control Aging In Roundworm
- Eureka Alert
10/24/2000: Harvard
Med School Scientists: Aging May Be Linked to Brain's Hormonal Signals
Caenorhabditis elegans
9/3/2001:Does
chromosome 4 hold the secret to human longevity?
- Eureka
Alert
9/3/2001:Long-life
gene secrets
9/25/2001:UIC
researchers find "fountain of youth" gene
- Eureka Alert