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Science Forum Index » Bio Evolution Forum » How quickly does the gene pool deteriorate when the weak sur
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| wiseman |
Posted: Mon Dec 25, 2006 7:18 pm |
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How bad is our gene pool in the west where the weak have as many
children as the strong? I look at the British royal family for example.
They are quite ugly and not that bright.
Does low intelligence, ugliness, bad teeth, etc become prevalent very
quickly. When you look at animals, sometimes 80 percent die off in a
bad winter leaving only those with good genes. At some point, wont we
have to start doing managing genetics. Was Hitler right on this point?
Churchill , as well? |
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| Guest |
Posted: Thu Dec 28, 2006 8:15 am |
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wiseman wrote:
Quote: How bad is our gene pool in the west where the weak have as many
children as the strong? I look at the British royal family for example.
They are quite ugly and not that bright.
Does low intelligence, ugliness, bad teeth, etc become prevalent very
quickly. When you look at animals, sometimes 80 percent die off in a
bad winter leaving only those with good genes. At some point, wont we
have to start doing managing genetics. Was Hitler right on this point?
Churchill , as well?
No, Hitler wasn't right on this point. Involuntarily sterilizing and
killing Germany's physically disabled and mentally ill wasn't right.
This wasn't managing genetics so much as wholesale premeditated murder
leading to the Holocaust. Eugenics, in the form of involuntary
sterilization, was practiced in the U.S. and some other countries. That
wasn't right either as it led to abuses. The best hope of managing
genetics is through prenatal screening, ultrasound, amniocentesis, CV
sampling, genetic tests, pharmaceuticals, etc. Eventually, through
genetic engineering certain diseases will be removed from the germline.
The last thing we need is a return of old fashioned eugenics. The human
species no longer faces the kind of environmental conditions which
resulted in the death of the weak and the survival of the strongest in
our ancestral past. Darwinian evolution is unwanted; science,
technology and progress (self-directed evolution) is to way to go in
managing genetics. No bloody battles of nature (although these will
still occur) and coercion.
Michael Ragland |
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| Tim Tyler |
Posted: Thu Dec 28, 2006 8:15 am |
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wiseman wrote:
Quote: How bad is our gene pool in the west where the weak have as many
children as the strong? I look at the British royal family for example.
They are quite ugly and not that bright.
Does low intelligence, ugliness, bad teeth, etc become prevalent very
quickly. When you look at animals, sometimes 80 percent die off in a
bad winter leaving only those with good genes. At some point, wont we
have to start doing managing genetics. Was Hitler right on this point?
Churchill , as well?
Yes, genes will be managed. What will happen is this:
http://alife.co.uk/essays/engineered_future/
Duff genes will continue to be selected against - as is happening
now and as has happened ever since the origin of life.
--
__________
|im |yler http://timtyler.org/ tim@tt1lock.org Remove lock to reply. |
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| wiseman |
Posted: Fri Dec 29, 2006 7:59 am |
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I didnt say eugenics was good. I said the gene pool will deteriorate if
we dont intervene in some way. Both Hitler and Churchill understood
this. I find it ironical that we are so ready to say darwinism is good
for animals but not for humans. Well, humans are animals.
RAGLANDMYCOOL@AOL.COM wrote:
Quote: wiseman wrote:
How bad is our gene pool in the west where the weak have as many
children as the strong? I look at the British royal family for example.
They are quite ugly and not that bright.
Does low intelligence, ugliness, bad teeth, etc become prevalent very
quickly. When you look at animals, sometimes 80 percent die off in a
bad winter leaving only those with good genes. At some point, wont we
have to start doing managing genetics. Was Hitler right on this point?
Churchill , as well?
No, Hitler wasn't right on this point. Involuntarily sterilizing and
killing Germany's physically disabled and mentally ill wasn't right.
This wasn't managing genetics so much as wholesale premeditated murder
leading to the Holocaust. Eugenics, in the form of involuntary
sterilization, was practiced in the U.S. and some other countries. That
wasn't right either as it led to abuses. The best hope of managing
genetics is through prenatal screening, ultrasound, amniocentesis, CV
sampling, genetic tests, pharmaceuticals, etc. Eventually, through
genetic engineering certain diseases will be removed from the germline.
The last thing we need is a return of old fashioned eugenics. The human
species no longer faces the kind of environmental conditions which
resulted in the death of the weak and the survival of the strongest in
our ancestral past. Darwinian evolution is unwanted; science,
technology and progress (self-directed evolution) is to way to go in
managing genetics. No bloody battles of nature (although these will
still occur) and coercion.
Michael Ragland |
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| wiseman |
Posted: Fri Dec 29, 2006 7:59 am |
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Good article. The problem is that I want my children genetically
engineered now. I cant wait until we learn how to do it. People who are
slow to adopt genetic engineering will end up lookin like prince
charles because the gene pool gets dirtier and dirtier when the unfit
survive.
Tim Tyler wrote:
Quote: wiseman wrote:
How bad is our gene pool in the west where the weak have as many
children as the strong? I look at the British royal family for example.
They are quite ugly and not that bright.
Does low intelligence, ugliness, bad teeth, etc become prevalent very
quickly. When you look at animals, sometimes 80 percent die off in a
bad winter leaving only those with good genes. At some point, wont we
have to start doing managing genetics. Was Hitler right on this point?
Churchill , as well?
Yes, genes will be managed. What will happen is this:
http://alife.co.uk/essays/engineered_future/
Duff genes will continue to be selected against - as is happening
now and as has happened ever since the origin of life.
--
__________
|im |yler http://timtyler.org/ tim@tt1lock.org Remove lock to reply. |
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| John Wilkins |
Posted: Sat Dec 30, 2006 7:54 pm |
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wiseman <nosugarintea@yahoo.com> wrote:
Quote: I didnt say eugenics was good. I said the gene pool will deteriorate if
we dont intervene in some way.
What sense is there to "deteriorate"? The fitness of a genome or gene
pool is relative to its environment. This argument assumes that our
"natural" environment (say, as Pleistocene foragers) is somehow
absoutely more healthy than our present environment. But all that is
happening is that our genome will have different fitness in the context
of modern medicine. The worst that can happen is that we get allelic
diversity down to low to respond to future crises, but as we don't know
what they will be, we cannot anticipate it, and anyway, I doubt this is
a realistic prospect if the population size is maintained.
Eugenics is based on a misunderstanding, and in fact rejection, of
evolutionary theory.
--
John S. Wilkins, Postdoctoral Research Fellow, Biohumanities Project
University of Queensland - Blog: scienceblogs.com/evolvingthoughts
"He used... sarcasm. He knew all the tricks, dramatic irony, metaphor,
bathos, puns, parody, litotes and... satire. He was vicious." |
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| Tim Tyler |
Posted: Sat Dec 30, 2006 7:54 pm |
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wiseman wrote:
Quote: The problem is that I want my children genetically
engineered now. I cant wait until we learn how to do it.
You have some problems then.
One problem is the traditional one of finding a
suitable mate.
Another is finding a clinic willing to help you, and
the cash needed to finance the project.
Engineering humans is still at a primitive state
of development - but some cash ought to be able to
locate a clinic that can at least do pre-implantation
genetic diagnosis (PGD) - and is prepared to fertilise
many eggs, test them, and then implant the best ones.
"Pre-Implantation Genetic Diagnosis"
- http://www.infertile.com/treatmnt/treats/pgd.htm
If you happen to live in a backward country that
does not allow post-natal abortions, such a process
should at least be able to minimise the chances of
you being stuck with a child with autism - or some
other crippling but non-fatal pathology.
--
__________
|im |yler http://timtyler.org/ tim@tt1lock.org Remove lock to reply. |
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| g |
Posted: Sat Dec 30, 2006 7:54 pm |
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"wiseman" <nosugarintea@yahoo.com> wrote in message
news:emqbbv$1t8c$1@darwin.ediacara.org...
Quote: How bad is our gene pool in the west where the weak have as many
children as the strong? I look at the British royal family for example.
They are quite ugly and not that bright.
Does low intelligence, ugliness, bad teeth, etc become prevalent very
quickly. When you look at animals, sometimes 80 percent die off in a
bad winter leaving only those with good genes. At some point, wont we
have to start doing managing genetics. Was Hitler right on this point?
Churchill , as well?
What you say might seem very convincing if people in the west were not now
living longer, on average, that at any known time in history.
Please don't get in a hurry to dispose of eighty percent of the population.
More and more evidence is being uncovered to suggest that some of the great
calamities in the world have resulted from extraordinarily large geothermal
events (larger than Krakatoa).
One of these millennia the Yellowstone National Park area may explode so
violently that the entire world will be
enshrouded with ashes and debris from it... resulting in a volcanic winter.
Then you will get your die-off. And you should be very happy to know that
if eighty percent of all the people on Earth starve off, odds are that you
won't be
around for it, but that if you are, the likelihood of your survival may not
necessarily depend upon whether you
are more fit than others. It will just be a matter of whether you are one
of the ones who -- in a very physically
run down condition, from having inadequate nutrition, may be one of the ones
who contracts one of the many
diseases which will go around.
Just as many of the biggest, strongest males who get the most opportunities
to breed, in some species, are the ones who do not survive the winter...
success in reproduction may be the very thing that knocks you off, rather
than
assuring your survival.
Unfortunately, many of the people who think as you do tend to think of
themselves as superior, and prone to survive. Your way of thinking may
predispose you to being aloof, or uncooperative, and to being ostracized by
groups who band together and nurture one another... assuring survival of the
"best" possibly, but not necessarily the strongest and hence most in need of
more than the average number of calories.
There are far more factors which can come to play in a die-off that the
simplistic tunnel vision model suggested by your comments.
If you are truly convinced that a human die-off would dispose only of the
weak and stupid, and only the most fit would survive, then perhaps you would
like to demonstrate your sincerity and reduce by one the number of sets of
stupid genes, by getting a vasectomy.
g |
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| Kent Paul Dolan |
Posted: Sun Dec 31, 2006 8:30 pm |
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Tim Tyler wrote:
Not a prayer. That is far too simplistic to be given
credence.
1) Probably for no normal greenspace on earth do
humans know, by a factor of five, say, all the
species that go into keeping a single square
kilometer of ecosystem running. Simulation of the
results of genetic engineering will lack that
critical knowledge, and so fail.
2) Arguably, feeding genetically engineered creatures
into an ecosystem whose functioning is incompletely
known is a pattern of behavior which has an
inevitable catastrophe in its workings.
3) Humans have minimal to no interest in most living
species. How much "engineering" is going to be
wasted on an improved emperor penguin?
4) Humans are incredibly few in number compared to
many living species. Does one seriously contemplate
humans genetic engineering, say, C. elegans and
having any meaningful effect?
5) Unless genetic engineering offspring are kept
sequestered, they'll just go right back into the
demesne of natural selection, so they won't _stay_
genetic engineered.
To arguments that inevitably eventually all lacks in
knowledge will be overcome, all such simulations
fixed run perfect, all ecosystems be completely
understood, all be species re-engineered, I answer
"why"?
Humankind has far better things to do with its time,
like finding ways to survive the death of the sun;
visiting other stars and planets with their own
ecosystems [to spread the human genome out to make
it a target more difficult to eliminate]; and
evading the hunger of the galaxy central black hole
for all the stars in the galaxy, which when crossed
with the inevitable instability of any star's orbit
over the long term, say, the star closest to us,
means that Sol will be swallowed "someday"; to
dedicate so many resources to genetic engineering
for its own sake.
Even genetic engineering merely our own species
presupposes some magical fairy dust means of
achieving agreement on what the goals of such
engineering should be. Imagine any scenario in which
that would be possible that can be got to from here
without the genetic engineering having already been
done to make that agreement possible.
Do we want to breed humans tailored so specifically
for difficult environments [deep ocean, Mars, Titan,
.....] that they become separate species, or do we
want to eliminate human racial differences in hopes
that some magic in everyone looking alike and being
equally capable will somehow reduce human conflict?
FWIW
xanthian. |
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| Tim Tyler |
Posted: Sun Dec 31, 2006 8:30 pm |
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John Wilkins wrote:
Quote: Eugenics is based on a misunderstanding,
and in fact rejection, of evolutionary theory.
Um, not according to the dictionary, it isn't:
``Eugenics:
the study of or belief in the possibility of improving the
qualities of the human species or a human population, esp.
by such means as discouraging reproduction by persons
having genetic defects or presumed to have inheritable
undesirable traits (negative eugenics) or encouraging
reproduction by persons presumed to have inheritable
desirable traits (positive eugenics).''
- http://dictionary.reference.com/search?q=Eugenics
--
__________
|im |yler http://timtyler.org/ tim@tt1lock.org Remove lock to reply. |
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| Kent Paul Dolan |
Posted: Mon Jan 01, 2007 12:46 pm |
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Tim Tyler wrote:
Quote: John Wilkins wrote:
Eugenics is based on a misunderstanding, and in
fact rejection, of evolutionary theory.
Um, not according to the dictionary, it isn't:
Well, yes, it is. Look below, and see two uses of
"presumed". The presumptions of eugenics enforcers
typically have had little if anything to do with
"fitness" (whatever the might mean once a severe
case of civilization has set in) and everything to do
with "social (un)desirability".
John's objection is spot on, which is why eugenics,
based on its sins of the past, is in such disrepute
today. Sterilizing someone whose mental deficiency
is due to being choked by the umbilical cord at
birth, or partially suffocated by carbon monoxide in
a home accident during childhood, makes neither
genetic nor evolutionary sense, yet it sure is
"eugenics", boy, howdy.
HTH
xanthian.
Quote: ``Eugenics:
the study of or belief in the possibility of
improving the qualities of the human species or
a human population, esp. by such means as
discouraging reproduction by persons having
genetic defects or presumed to have inheritable
undesirable traits (negative eugenics) or
encouraging reproduction by persons presumed to
have inheritable desirable traits (positive
eugenics).''
http://dictionary.reference.com/search?q=Eugenics |
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| Bob Kolker |
Posted: Mon Jan 01, 2007 12:46 pm |
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Kent Paul Dolan wrote:
Quote:
Do we want to breed humans tailored so specifically
for difficult environments [deep ocean, Mars, Titan,
....] that they become separate species, or do we
want to eliminate human racial differences in hopes
that some magic in everyone looking alike and being
equally capable will somehow reduce human conflict?
The former, rather than the latter. We are not going to end up looking
alike and singing Kumbaya around the campfire. Darwin loved life, but he
realized that life is strife and destruction as well as adaptive success.
Bob Kolker |
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| Tim Tyler |
Posted: Mon Jan 01, 2007 12:46 pm |
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Kent Paul Dolan wrote:
Simple - but also rather obvious: design, intelligence
*and* optimisation techniques are obviously going to
produce better results than one specific optimisation
technique alone.
For such a technology to be invented and /not/
adopted by organisms seems inconceivable to me.
Sure, that's pretty much what happens in Star Trek -
but they need to explain why recognizable humans
exist in the far future - or else face difficulties
with finding actors and losing the interest of their
teenage fan base.
Oh well: at least they bought in the
slightly-more-realistic 'Borg' in the later series.
Quote: 1) Probably for no normal greenspace on earth do
humans know, by a factor of five, say, all the
species that go into keeping a single square
kilometer of ecosystem running. Simulation of the
results of genetic engineering will lack that
critical knowledge, and so fail.
So what? If we had to simulate everything before
we did it, very little would get done.
Quote: 2) Arguably, feeding genetically engineered creatures
into an ecosystem whose functioning is incompletely
known is a pattern of behavior which has an
inevitable catastrophe in its workings.
I would argue that is not true.
For example genetically engineering using
recombinant DNA was first used commercially
to produce human insulin from bacteria.
That didn't seem to result in much of an
'inevitable catastrophe'.
Quote: 3) Humans have minimal to no interest in most living
species. How much "engineering" is going to be
wasted on an improved emperor penguin?
It isn't. Most likely emperor penguins will be
wiped out as more sophisticated creatures invade
their environment. I.e. the current mass extinction
will probably eliminate the emperor penguins.
This would not be surprising - historically,
extinction is the fate of most species.
Quote: 4) Humans are incredibly few in number compared to
many living species. Does one seriously contemplate
humans genetic engineering, say, C. elegans and
having any meaningful effect?
Our descendants will engineer our food, our symbionts
and those their ecosystems depend on. Eventually
everything will depend on technology which has
been engineered - since the genetic substrate and
the phenotype technologies of all organisms will
have been replaced.
Quote: 5) Unless genetic engineering offspring are kept
sequestered, they'll just go right back into the
demesne of natural selection, so they won't _stay_
genetic engineered.
In an engineered world, /most/ things will be born
in factories. Without the factories they will
typically be incapable of reproduction.
Some self-reproducing engineered things will
probably 'fall off the rails' and wind up only
being naturally selected ...but they will have
to compete with a continuous influx of engineered
organisms.
Quote: To arguments that inevitably eventually all lacks in
knowledge will be overcome, all such simulations
fixed run perfect, all ecosystems be completely
understood, all be species re-engineered, I answer
"why"?
I was claiming that future ecosystems will consist
primarily of engineered organisms. You don't
have to completely understand something to be
able to apply engineering principles to it.
Quote: Humankind has far better things to do with its
time [...] to dedicate so many resources to
genetic engineering for its own sake.
I'm not asserting genetic engineering will be
done 'for its own sake'. It will be done
because its products will be vastly superior
to those made without such engineering.
Quote: Even genetic engineering merely our own species
presupposes some magical fairy dust means of
achieving agreement on what the goals of such
engineering should be.
Really? Many human actions are objected to by
some folk. That doesn't mean nothing ever gets
done. I'm sure there will be much debate on
this topic.
If naysayers continue to object to engineering
existing organisms - and get their way - what
will happen is machines will race ahead of
biological organisms technologically, until
they are the dominant organisms, and we are
parasites upon them.
.....but I doubt that will happen. Failing to
pursue genetic engineering would be too idiotic.
Quote: Do we want to breed humans tailored so specifically
for difficult environments [deep ocean, Mars, Titan,
....] that they become separate species, or do we
want to eliminate human racial differences in hopes
that some magic in everyone looking alike and being
equally capable will somehow reduce human conflict?
The notion of 'separate species' started to lose its
meaning back when it became possible to transfer
genes between species.
Yes, our descendants will become specialised so that
they can occupy more niches - but that doesn't imply
that they won't be able to exchange genes. Now
the species barrier has been breached, gene trade
will escalate rapidly.
By contrast, eliminating human racial differences
is unlikely to happen because it is a silly goal.
For one thing, skin pigmentation differences exist
for a good adaptive reason, to allow humans to
occupy a wider range of niches.
--
__________
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| John Wilkins |
Posted: Mon Jan 01, 2007 12:46 pm |
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Tim Tyler <seemysig@cyberspace.org> wrote:
Quote: John Wilkins wrote:
Eugenics is based on a misunderstanding,
and in fact rejection, of evolutionary theory.
Um, not according to the dictionary, it isn't:
``Eugenics:
the study of or belief in the possibility of improving the
qualities of the human species or a human population, esp.
by such means as discouraging reproduction by persons
having genetic defects or presumed to have inheritable
undesirable traits (negative eugenics) or encouraging
reproduction by persons presumed to have inheritable
desirable traits (positive eugenics).''
- http://dictionary.reference.com/search?q=Eugenics
With respect, that definition, while accurate enough, is not based on
evolutionary theory. But as early as the mid-30s, Dobzhansky noted that
evolution occurred on species with genetic loads no better than ours,
which did not go extinct.
Eugenics is based on animal husbandry, and has been since the Spartans.
--
John S. Wilkins, Postdoctoral Research Fellow, Biohumanities Project
University of Queensland - Blog: scienceblogs.com/evolvingthoughts
"He used... sarcasm. He knew all the tricks, dramatic irony, metaphor,
bathos, puns, parody, litotes and... satire. He was vicious." |
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| Guest |
Posted: Tue Jan 02, 2007 9:02 am |
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Tim Tyler wrote:
Quote: John Wilkins wrote:
Eugenics is based on a misunderstanding,
and in fact rejection, of evolutionary theory.
Um, not according to the dictionary, it isn't:
``Eugenics:
the study of or belief in the possibility of improving the
qualities of the human species or a human population, esp.
by such means as discouraging reproduction by persons
having genetic defects or presumed to have inheritable
undesirable traits (negative eugenics) or encouraging
reproduction by persons presumed to have inheritable
desirable traits (positive eugenics).''
- http://dictionary.reference.com/search?q=Eugenics
The 'concept' of eugenics has been used as a pretext for systematically
exterminating the physically and mentally unfit in Nazi Germany and a
prelude to the Holocaust...racial cleansing. It was also used in
involuntary sterilization of undesirables in Nazi Germany. I could be
mistaken but I've sensed in you a disinterest or aversion to morality.
So I ask you if Nazi Germany had kept up its involuntary sterilization
and extermination programs would that have improved the qualities of a
human population, esp. by such means as discouraging reproduction by
persons having genetic defects or presumed to have inheritable
undesirable traits and encouraging reproduction by persons presumed to
have inheritable desirable traits? A simple yes or no will suffice. I
will not entertain the moral question since I think you might find it
irrelevant. I understand Nazi Germany's massive blood lettting was a
part of Darwinian evolution, if not scholarly evolutionary theory
although there were books such as "The Destruction of Life Unworthy of
Life".
I've never cared for Darwinian evolution. It moves way to slow and
retains evolutionary traits which are no longer adaptive in today's
environment.
The U.S. and a handful of other countries practiced eugenics but unlike
Nazi Germany they did not escalate to extermination. Instead
involuntary sterilization was the rule. The U.S. provided the model
which Nazi Germany's involuntary sterilization law was based. The U.S.
Supreme Court under Chief Justice Wendel Holmes made the decision and
even though involuntary sterilization is not practiced in the U.S.
anymore it is legally still on the books. It has never been removed. A
woman was capable of being sterilized not for having any genetic
defects but merely being poor and having a child out of wedlock. In the
U.S. such laws were practiced up until the 1970s.
Positive eugenics for the Nazis was nothing more than traditional
breeding stock. In some cases kidnapping Polish children who had
'Aryan' features, raising them as German and later being mated
appropriately.
You mentioned engineering one's progeny is still primitive with the
nearest thing being preimplantation; picking the best eggs. I think we
have a ways to go yet before science can actually offer diverse
services and technologies for genetically engineering one's progeny.
All the eugenics websites I've found focus heavily on IQ testing and
the differences between groups. Typically, folks like Jensen, Murray
and Herrnstein argue Blacks are inherently genetically less intelligent
and environmental stimuli won't raise their IQs. They then enter the
political arena and call for cutting programs such as Head Start. I
don't except their premise. They're are differences in IQ between
blacks and whites but I don't think it is inherently genetic.
I don't support the way much of eugenics has been practiced in the past
nor theorized in the present. I support birth control-population
control organizations because obviously there is too many people in the
world (another thing you seem utterly disinterested in or irrelevant)
and the poor quality of life this produces for many women in the world.
At least in the twentieth century the practice of eugenics and the
theorizing of much of it has led to strife, turmoil, power struggle of
groups, terror, coercion, and extermination. You won't find that in
your dictionary but then again there are many things about humans you
won't find in dictionaries.
Michael Ragland
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