Greg Smith has been on the fast track to college from a very early age. He was just a baby in diapers when he started correcting other people's grammar. By 18 months, he could add and subtract. He knew the alphabet by the time he could walk. He graduated from high school at age 9, after completing grades 9 through 11 in just months. In 1999, Oprah sat down with the 10-year-old child prodigy, who had just started college. Take a look back. Plus, watch Oprah's follow-up with the boy genius, all grown up:    • Follow-Up With the “Boy Genius” Who W...  

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Meet the 10-Year-Old Prodigy Already Attending College | The Oprah Winfrey Show | OWN
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