80/20 Rule of Learning, Training, Gamification; best examples   80/20 Rule of Learning and.20/80 Rapid Training General learning/training: 80% of your practice time brings you only about 20% of your total learning progress. Rapid learning/training (such as RIEL and Super-Gamification): 20% of your practice time brings you about 80% of your total learning progress.     InnoBall (Innovation Brainball) Entrepreneurial simulation game     *** If you are like most guitarists, the following two statements are approximately true (whether you are aware of it or not): 80% of your guitar practice time brings you only about 20% of your total guitar playing progress. 20% of your guitar practice time brings you only about 80% of your total guitar playing progress.