It takes about 50 years for a "game" to become a "sport," according to Andrew Paradise's calculations. He's an entrepreneur who recently joined the wave of investors getting in on the eSports game: His app, Skillz, allows mobile-gaming fans to win real money while playing some of their favorite titles. That's right, mobile eSports. From smartphones to dedicated eSports arenas, Paradise knows why professional gaming is a booming market and he explains it all in a straightforward, money-focused manner. If you've ever looked at eSports and wondered, "Why?" Paradise might have your answer.