nowhere have I "claimed" an "innate deficiency" of intelligence in blacks. My position on this question is clearly spelled out in my most recent book: "The plain fact is that at present there exists no scientifically satisfactory explanation for the differences between the IQ distributions in the black and white populations. The only genuine consensus among well-informed scientists on this topic is that the cause of the difference remains an open question."
https://en.wikipedia.org/wiki/Arthur_Jensen#Criticism
I believe the largest cause of lower black IQ is kike propaganda directed at black people encouraging them to blame the white man and demand free stuff from White men instead of trying to succeed by actions other than blaming the White man. And not being told that it is the White looking kikes that keep them down when the White man is blamed
There might still be an IQ difference but the difference would be much less without such propaganda because they might try to study
@EvilSandmich @Humpleupagus @HarryNuggets
Most of the variation in physical attributes is caused by behaviors and environment with rare exceptions when people have certain genetic disorders
I am proposing the same for intelligence and physical attributes
No matter how much genetic potential someone has most will not be able to do a 5 minute per mile marathon without training
The primary cause of high intelligence is the choice to study not DNA
Rare exceptions are caused by genetic defects
@Charles_in_Charge @Humpleupagus @EvilSandmich @HarryNuggets
There is a difference between raw intelligence test scores & relative IQ test scores
So you could make maybe 80% of the population smarter at that subject than 80% of people with a PhD in any field you choose today with the right combination of training but if you apply that standard to everybody than they might raise the PhD standards so you would not get more PhDs
There might be less than 20% that can not achieve that genetically
No, you can't. You can, if they reach some minimum standard of intelligence, teach them more about a subject. That does not make them smarter.
Do not confuse the ability to regurgitate facts with intelligence, or even understanding.
Also, do not conflate "with a PhD" with any particular level of learning or intelligence. that's conflating classroom compliance with education, education with understanding, and understanding with intelligence.