reply to post by Antigod
I do not deny that some rare genetic mutations affect intelligence and other systems. My point is that this observation leads to some HUGE
misconceptions, largely based on a confusion equating genes with epigenetically altered gene products.
I also would never argue that our so-called system of "higher education" is not riddled with extremely biased Eugenicists.
As far as heritability goes, you need to know that it can be genetic or epigenetic - and epigenetics is far more able to explain individual
Cool about your credentials though. I never talk about my own because I prefer to stay anonymous and also, prefer not to make unverifiable claims.
Well, if I was going to make it up I'd have said I had a psych phd.
Myopia ia a RARE mutation? (I say squinting through my specs). Most of East Asia is myopic.
I'm sorry, but thinking genetics doesn't have a major effect on your intelligence is just mad. If it didn't, a chimp could be a neurosurgeon. It
doesn't matter how environment is interacting with his genes, he isn't going to be able to do it.
Generally, from the papers and letters I've seen, the general feeling is that your genes set the upper limit of your ability, and environment decides
how close you get to that. In most developed countries, nutrition and education is sufficient to get you close to your maximum, unless something
significant has happened to you (brain damage, exposure to drugs ect, as has already been pointed out by myself and another.
Example; Einstein was oxygen deprived at birth. Needs a lifetime of care instead of thinking up relativity. Environment wins.
The virtual twin studies showed that children adopted into nice households at about the same age had nearly no relation in their intelligence
Idiot version here
Dr. Segal said that while “genetics do not tell the whole story,” even if parents treat their virtual twins as biological twins or if the
children show similarities early in life, her research has found that environment still has “minimal or no effect” on them in terms of behavior
and intelligence. Virtual twins can seem very similar in their early years, she said, but in the long term a shared environment is not “going to
have a lasting impact.”
You also find that the IQ of adopted children is more similar to their birth parents. It's also a bit lower than average, due to the fact a lot of
them are removed from incompetent parents (stupid). Although it generally improves a fair bit after being with the adoptive family for a while.
Genes tell your body how many brain cells to make, what goes where, how the neurons should fire. How can that coding not have a significant effect on
how the organ functions?
Quite a lot of brain affecting mutations are relatively recent (thousands of years), and widespread suggesting they are under positive pressure even
when they cause negative effects like myopia. Eyes are part of the brain in foetal development, and it's no big stretch to see that something that
affects the eyes at this stage also affects the nearby connected part of the brain (the myopia trait positively affects visual spatial
The list of genetic conditions that severely negatively affect intelligence is quite long.
Angelman/Prader willy syndrome
Well, there's plenty. So we know damn well that genetics has a major effect on intelligence.
Does this sound like a pro eugenics lecture? Well, bear in mind a woman with an IQ of 80 has an average of four children, one with an IQ of 120 has on
average one. A person with an IQ of 80 is probably not going to get a decent education, will be in the danger zone for crime if male, and will be
unlikely to get anything beyond minimum wage unskilled labour unless he's an athlete or a model. There's an IQ range that skilled professionals and
scientists all fall into. It's not under 100.
It's called 'dysgenics' and it's happening now. Oh yes, dug up a paper for you:
Basically it was undersigned by just about all the major specialists in IQ at the time. This page also has the results of a study into how IQ affects
your life outcome
Her study is here
. Eye opening