FIREnomics Weekly

FIRE math with the spreadsheet open

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Practical financial-independence analysis: savings rate, index funds, the 4% rule and withdrawal strategy, argued with expected-value math and sequence-risk checks. Recent issues tested whether the 4% rule breaks over 50-year retirements, priced the 9% dividend-yield FIRE trap, and ran the EV math on $997 guru courses versus 15 years of index returns.

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Sam Racicot

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Are Guru Courses Worth It? The Expected Value Math

Are guru courses worth it? The expected value math says usually no. We compare $997 tuitions to 15 years of index fund returns and give a strict buy rule.

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