2-yr-old UK boy becomes youngest member of high-IQ society Mensa

A two-year-old boy named Joseph Harris-Birtill from UK has become youngest male member of global high-IQ society Mensa. Joseph spoke his first word when he was just seven months old and read his first book cover to cover when he was 1.75 years old. Mensa members need to be in the top 2%, having an IQ of at least 132.