Power up, level up, and get ready to take your business to the extreme, with this incredible interview with Single Grain’s Eric Siu.    A former pro-gamer, Siu has been on the quintessential entrepreneur’s journey. He’s faced scaling issues, failure, and trying to do too much at once, and now he is ready to reveal why he believes gamers make the best entrepreneurs.   In this electrified interview with Foundr, Siu discusses why every founder needs to have a good understanding of marketing, essential long-term skills you need to have, and why he predicts Clubhouse will be the ultimate training ground for entrepreneurs.