What Is the 4% Rule for FIRE?

The source provides an extensive examination of the 4% Rule, which is the foundational principle of the Financial Independence, Retire Early (FIRE) movement. It explains the rule's origin, noting that financial advisor William Bengen developed it in the 1990s using historical market data to find the highest safe withdrawal rate that would sustain a diversified portfolio for at least 30 years. The episode details the core mechanics, requiring savers to accumulate 25 times their annual expenses, and then withdraw 4% of that total in the first year, adjusting subsequent withdrawals for inflation. However, the source also addresses significant criticisms, pointing out that the original rule’s 30-year horizon is too short for early retirees, and recent economic factors like high inflation and low bond yields suggest a safer modern rate may be closer to 3.5%. Finally, the episode explores alternatives and adaptations, such as using variable spending and guardrails, to make the rule more viable for those seeking financial freedom today.“If you don't find a way to make money while you sleep, you will work until you die.”Warren Buffett