Little Geniuses on The Oprah Show
When it comes to IQ, these kids certainly pass the test. Look back at our most memorable little geniuses!
Greg Smith
Oprah first met Greg Smith in 1999, when he had an IQ so high, it couldn't even be measured.
Today, 21-year-old Greg has two masters degrees and is currently studying for his PhD at Carnegie Mellon University.
Published 03/01/2011
