# Why Even the Best Retirement Calculator is Wrong

Page: https://stenobird.com/podcast/retirement-answer-man-391124/why-even-the-best-retirement-calculator-is-wrong
Text version: https://stenobird.com/podcast/retirement-answer-man-391124/why-even-the-best-retirement-calculator-is-wrong.md
Podcast: [Retirement Answer Man](https://stenobird.com/podcast/retirement-answer-man-391124)
Published: 2026-03-25T08:00:00+00:00
Episode link: https://share.transistor.fm/s/61aafdd5
Audio file: https://media.transistor.fm/61aafdd5/9168f666.mp3
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JSON: https://stenobird.com/v1/public/podcasts/retirement-answer-man-391124/episodes/why-even-the-best-retirement-calculator-is-wrong
Duration seconds: 3572

## Resource

Roger Whitney explores why retirement planning software—especially Monte Carlo simulations—can give a false sense of confidence if misunderstood. He explains what these tools actually measure, the hidden assumptions behind them, and why retirement is a complex problem that requires judgment, flexibility, and resilience—not just a high “success rate.” Roger shares how to properly interpret results, avoid common traps, and use software as a guide rather than a decision-maker so you can build a retirement plan that supports a great life. OUTLINE OF THIS EPISODE OF THE RETIREMENT ANSWER MAN (00:00) This show is dedicated to helping you not just survive retirement, but have the confidence to lean in and rock it. (00:30) Roger introduces the episode topic—why your retirement calculator’s success rate can be misleading. PRACTICAL PLANNING SEGMENT (02:50) Roger explains his perspective as a long-time practitioner and outlines his experience using Monte Carlo-based retirement tools. (05:05) Complicated vs. complex problems: why retirement can’t be “solved” like a math equation and must instead be managed over time. (09:30) Concerns about overreliance on software—from advisors scaling businesses to individuals misinterpreting results. (11:30) What retirement software actually measures. (13:25) What software does NOT measure. (14:18) Best uses of planning software. (17:40) What software should NOT be used for. (19:40) Key dangers of using retirement software. (23:00) Feasibility vs. resilience: why a plan that “works” on paper may still be fragile in real life. (24:20) The real risk: Overspending early and jeopardizing later years Underspending and missing out on life (26:20) The massive number of assumptions behind every plan—and how small changes can dramatically alter outcomes…

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## Transcript

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