Billionaire Elon Musk recently dropped the names of three entrepreneurs he feels are the smartest people in the world. In a recent podcast appearance, the richest man in the world named three ...

who was considered the smartest man in the world for decades. Eddie Redmayne's award-winning performance as the physics genius is incredible and the movie makes some complicated science actually fun.

Christopher Langan is arguably the smartest man in the world. He took what is billed as the world’s most difficult IQ test and was scored at somewhere between 190 and 210 points. For comparison ...

Rick Rosner - the second-smartest man in the world as ranked by IQ tests - sometimes feels stupid. "Not figuring things out faster makes me feel dumb," he told Business Insider UK. Of course ...

Rick Rosner is the second-smartest man in the world as ranked by intelligence tests. He's somewhat of a health junkie, too. On the rare occasions that Rosner eats pizza, he peels off most of the ...