The billionaire CEO of the Columbia Sportswear Company has just made anyone who believes the Earth is flat an opportunity of a lifetime. Tim Boyle, 76, announced a new competition on Tuesday, which challenged 'flat Earthers' to find the actual edge of the planet and bring back a picture of the abyss that sits beyond. Boyle, who is worth an estimated $1.6billion, said the reward for their world-changing discovery would be the control of his $3billion family business, which was founded in 1938.