Because black people were disadvantaged in America on the basis of their race.

But if intelligence was based on genetics

Doesn't mean that it's a legitimate scientific category.

It can be

that would prove it's not caused by their disadvange

but by their genes

No you can have it be both enviromental

and genetic.

Yes

but a high genetic percentage

In early years, your IQ is more dependent on environmental factors than genetic factors.
So if black people are more often born in poorer areas with lower access to good education, then they are developing in low IQ areas.
But if white people are more commonly born in wealthier areas, with great access to education, public or private, then their IQs are inherently going to be higher.

But post brain development, past 27 years old, then the genetics of your brain makeup take the driver seat in your IQ.

such as 60-80% which was claimed earlier

the environment also influences IQ.

Please provide me a study that says its 60-80% genetic.

Scroll up.

It's a claim from Fetty

From an Indian Neurosurgeon.

Mr. Oomman.

I'm just saying what it would mean IF it was true

Dr. Oomman actually.

It would mean policies such as affirmative action are irrelevant

Sure but its perfectly possible to have environment influence ones genetics

You'll see it repeated that genetics take a stronger effect on IQ than environmental effects. Some studies in twins say so, I read. But again this is all in the adult years.

which would then in turn influence ones IQ

They work together. Environmental affects and genetics.

From what I've understood @Yiddlemethisgoyim

Studies take twins which are very genetically similar

They follow they growth through different environments

And it seems from some studies that the environment did not have such an influence

And they also followed adopted black kid raised in good environment but the IQ also seemed not to be that influenced

They might be bullshit the studies

I dont know

Twins separated at birth tend to grow similar lives in different areas, yes.

Well, this was seen in one study I saw. In HS.

The other thing is that, if we determined that 100% of your IQ is based on your genetics, how much does race really even have an effect on such a thing?

well

How much does your ethnicity *really* change your brain chemistry...

IQ is correlated with race

IQ is genetically based

Therefore some races are genetically inferior

Once you accept IQ is genetics, the leap is straightforward