80/20 Rule

80% of the outcome is the result of 20% of all causes. Also known as the Pareto Principle.

As a programmer, 80/20 Rule means only 20% of the time is actual coding the rest is thinking.

As a manager, 80/20 Rule means 80% of the employees are slacking, and the other 20 are doing all the work.

Galaxy photo by Andy Holmes on Unsplash