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The Math Behind The 5-Hour Rule: Why You Need To Learn 1 Hour Per Day Just To Stay Relevant
The rate at which knowledge is becoming outdated is predictable and growing exponentially. For example:
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Key Ideas
The Pareto principle states that 20% of your activities (even lesser) deliver 80% results (even more) in almost every area of your life.
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Facts decay over time. And the time it takes to disprove or replace half of it can be predicted.
Data in medicine become half as relevant in 2-3 years. For exact sciences, 2-4 years.
If we want our knowledge to compound, we’ll need to focus on the invariant general principles.
Half-lives show us that if we spend time learning something that changes quickly, we might be wasting our time.
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Key Ideas
No matter how busy successful people are, they always spend at least an hour a day (thus five hours a week) learning or practicing. And they do this across their entire career.
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Besides expanding your knowledge, reading can give you a good head start; this is often what your peers cannot obtain.
Even if you can't commit to an hour or more of reading every day, start with 20 to 30 minutes.
The five-hour rule also includes reflecting and thinking. This could be just staring at the wall or jotting down your thoughts.
Focusing on the past gives you a chance to learn from mistakes you've made, as well as assess what you did correctly. As a result, you’ll be better suited to achieve your goals and improve your life.