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Learn what the S&P 500 is, its historical average return, and how to use this information for long-term financial planning. A beginner's guide.

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Understand the basics of game theory, including Nash equilibrium and the Prisoner's Dilemma, and learn how strategic thinking can be applied to business, negotiations, and everyday life.

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Discover the simple 50/30/20 rule, see real savings examples by income, and learn how to automate your savings for guaranteed success. Your complete 2025 guide.

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Learn how the Rule of 72 can quickly estimate how long it takes for an investment to double. A simple guide for compound interest and financial planning.

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Learn what the sunk cost fallacy is, why our brains fall for it, and how to overcome this common bias in your financial and life decisions.

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