Johnson is very good at gambling, mainly because he’s less willing to gamble than most. He does not just walk into a casino and start playing, which is what roughly 99 percent of customers do. This is, in his words, tantamount to “blindly throwing away money.” The rules of the game are set to give the house a significant advantage. That doesn’t mean you can’t win playing by the standard house rules; people do win on occasion. But the vast majority of players lose, and the longer they play, the more they lose.