if a very complex job or role requires an IQ of 145 ... then a group with a higher average IQ will be exceptionally over-represented in such enterprises.
He's not even remotely correct. The totality of IQ scores form a normal distribution / bell curve, but individual groups have different variances (width of the bell) and different means.
For example, say there's 5 genes for intelligence, but the 5th reduces IQ unless all 5 are present in which case it's a huge boon. A group that's been genetically isolated for thousands of years and doesn't have this 5th will have higher average intelligence because most of the time the 5th one interferes and lowers the average of others. But occasionally somebody in the other group will have all 5 giving them far more super geniuses per capita.
There are many genes for intelligence that operate in complex ways, so this is not even theoretical. Average means nothing as to the number of geniuses without the variances.
He's not even remotely correct. The totality of IQ scores form a normal distribution / bell curve, but individual groups have different variances (width of the bell) and different means.
For example, say there's 5 genes for intelligence, but the 5th reduces IQ unless all 5 are present in which case it's a huge boon. A group that's been genetically isolated for thousands of years and doesn't have this 5th will have higher average intelligence because most of the time the 5th one interferes and lowers the average of others. But occasionally somebody in the other group will have all 5 giving them far more super geniuses per capita.
There are many genes for intelligence that operate in complex ways, so this is not even theoretical. Average means nothing as to the number of geniuses without the variances.
tl;dr Peterson is being a dumb-dumb.