The Pareto principle: 80% of consequences come from 20% of causes.

The 80/20 rule can be observed in the real-world.

Business management: 80% of sales come from 20% of clients.

Economics: 80% of Italy's land was owned by 20% of the population

Fundraising: 20% of the donors contributing towards 80% of the total.

Computer science: Microsoft found that fixing top 20% of bugs, 80% of crashes will be eliminated

We can also apply it to our lives.

Relationships: who are the few people that matter the most and has the most impact on my life, spend more time with them.

Actions: What are a few actions I can take today that can have the most impact on my life?

Stress: What are the stressors that cause the most friction in my life? Eliminate them.

Learning: What are the few high-value sources of information that I should focus on to help me grow and self-actualize?