The default 80/20 example everyone uses for Pareto misleads you about the nature of the insight. You can observe any combo, and they need not add up to 100%. It

The default 80/20 example everyone uses for Pareto misleads you about the nature of the insight. You can observe any combo, and they need not add up to 100%. It could just as well be “12% of the effort gets you 100% of your results, and the other 88% gets you nothing.”