At least many 12-year-olds can learn to self-modify if they are taught properly. Some of the research in this area are summarized in "Outsmarting IQ: The Emerging Science of Learnable Intelligence" http://www.amazon.com/Outsmarting-IQ-Emerging-Learnable-Inte...
At least many 12-year-olds can learn to self-modify if they are taught properly. Some of the research in this area are summarized in "Outsmarting IQ: The Emerging Science of Learnable Intelligence" http://www.amazon.com/Outsmarting-IQ-Emerging-Learnable-Inte...