The answer is someone can but that's very hard thing to do that. The thing that must noted is if you shall not be greedy once you get ince profit from doing something like online betting or casino. There was a guy who has posted an amazing earning from did gambling. he said that if he was also able making some investment in some real estate due to his money from gambling. You can take a look at this https://bitcointalk.org/index.php?topic=5441169.0

that will give you a very good example about when the right gamblers doubled or more his money.