The traditional 4% withdrawal rule has become gospel in FIRE communities, but it wasn't designed for tech professionals. The Trinity Study analyzed 30-year retirements from 1926-1995, not 50-year tech retirements with concentrated equity positions. Success rates drop from 95% over 30 years to ~70% over 50 years. Tech professionals face amplified sequence of returns risk, concentration risk masquerading as diversification, and psychological challenges of early retirement. The solution: a dynamic withdrawal framework with true diversification, adaptive rates (starting at 3.5%), and optionality preservation.
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