I’m not as fascinated by ideas of innate intelligence as a lot of techie people seem to be. I also hold values of equality and human dignity somewhat more strongly than the “fairness” invoked by e.g. opponents of affirmative action–so even if a lot of the “general intelligence is meaningful, measurable, and genetically determined” stuff were to be shown true, it wouldn’t change my political commitments.
So even though it wouldn’t really matter, I recalled hearing that the science in this book was sketchy somehow, and that was about it.
This video patiently explains:
Overall, I would highly recommend checking it out, because the influence of this work and its weird little online devotees has been such that even if you know you are 100% opposed to its political conclusions, you may have unknowingly absorbed some of its false premises.