Marko Greguric, a 27-year-old from Croatia, says he was transfixed when he first came across someone claiming to be a full-time day trader on his social media feed. They're a trope that's become fairly common online, a type of influencer who often lives a nomadic lifestyle, has a sports car, and claims to be able to make money anywhere there's an internet connection. Greguric began to immerse himself in markets, and after finishing graduate school, decided to put a more traditional career on