The conversation between human and AI assistant.
[|Human|] What is the Pareto principle?
[|AI|] The Pareto principle also known as the 80/20 rule or the law of the vital few, states that roughly 80% of consequences come from 20% of causes. For example 80% of revenue comes from 20% of customers (the vital few).
[|Human|] 
What is the Pareto principle?