I think Paroli system is a positive betting progression strategy that seeks to maximize gains while limiting losses. It involves doubling the bet after every win instead of doubling after a loss, as in the Martingale system. The goal is to capitalize on hot streaks and progressively increase the wagering amount, while also setting limits to prevent excessive losses. The Paroli system can be applied to various games like craps or baccarat but can be used in sports betting as well.