The Pareto Principle

In 1906, Italian economist Vilfredo Pareto noted that 80 of the wealth in Italy was held by just 20 of its citizens. In over a century since then, this idea has been put to the test in a number of fields beyond economics, and similar patterns have been found. The exact percentages may vary, but the general observation has emerged over time the vast majority of effects in many systems are a result of just a small number of the causes. In programming, this principle can manifest in a number of...