Top 10 most intelligent people in the world – See the Nigerian that made the list + What he did

5. Christopher Langan

Christopher Michael Langan has a verified IQ of 195.
Christopher Langan is an American autodidact with an IQ reported to be between 195 and 210. He has been described as “the smartest man in America” as well as “the smartest man in the world” by the media. He began talking at six months, and taught himself to read when he was three. He has developed a “theory of the relationship between mind and reality” which he calls the “Cognitive-Theoretic Model of the Universe” (CTMU).