"In the 1990s, Miraca Gross studied children who were radically accelerated, starting college between eleven and sixteen. None regretted the acceleration, and most had made good and lasting friendships with older children. By contrast, gifted children stuck with age peers experienced rage, depression, and self-criticism. Today, most gifted programs keep children in an age-based setting some of the time and a skills-based setting the rest of the time. Neither affords a perfect fit. The mathematical prodigy Norbert Wiener wrote that the prodigy knows "the suffering which grows from belonging half to the adult world and half to the world of the children about him." He explained, "I was not so much a mixture of child and man as wholly a child for purposes of companionship and nearly completely a man for purposes of study." --