tl;dr If someone [a professional gambler] wanted to set and pursue a goal (such as losing weight, quitting smoking, exercising on a schedule or lowering their

tl;dr If someone [a professional gambler] wanted to set and pursue a goal (such as losing weight, quitting smoking, exercising on a schedule or lowering their golf handicap), they would just canvass the regulars in the poker room for someone to bet them they couldn’t do it.