>>105628154Its just not true, nothing supports that assertion,
1. if a person has "good" nutrition and upbringing as in any average western nation, genetics account for 80-90% of adult intelligence,
2. total amount of education/instruction doesn't correlate with intelligence nearly as much as you think it does
the us military tried this,(macnamara's morons), and what they found that people below an iq of 80 cannot be trained to do anything useful in the military, not exactly a high bar, and thus it is illegal to induct such people. these are not people who aren't able bodied, they just aren't intelligent
>>105628165You can try to cram as much stuff into a person's brain as you can, make your learning as efficient as possible ,but the fundamental limit for how much you can learn is how fast you learn, because humans have a limited lifespan, It limits the level of expertise you can achieve in a human lifespan. This is about as clear cut as it gets.