Researchers say up to 75% of IQ is genetic. The rest determined by external factors like schooling and self-study.
“Our research suggests that it might be possible to...modify intelligence...we have just taken a first step along that road.”
Before gene-splicing your kids remember high IQ can also be a curse.
Consider the antics of Unabomber Ted Kaczynski, the OCD of Nikola Tesla, the crippling depression of Ludwig Von Beethoven, the autism of Michelangelo, the agoraphobia of Charles Darwin, and the anti-gravity mood swings of Isaac Newton.