It's one of life's mysteries that has tormented the greatest human minds throughout history and will likely continue to do so ...

Chris Langan's IQ is often one of the highest recorded. Despite lacking academic qualifications, Langan has been called the "smartest man in America'' with an estimated IQ higher than an ordinary ...

For the best experience, please enable JavaScript in your browser settings. Christopher Langan is arguably the smartest man in the world. He took what is billed as ...