I'm not making thsi shit up. Rapper B.o.B (anyone ever hear of this guy?) went on a Twitter rant, posting "evidence" that the world is flat and not round. Check out the entire rant and the hilarious responses in the link below. Why does the world look round on film? According to B.o.B, the lenses on GoPros are round, thus creating an optical illusion that the world is round. No, seriously, he believes this.