Building Wealth
FIRE-Chasing Fiona
UX Research Lead · Portland, OR
On track for FIRE at 42. Or so she thinks.
About FIRE-Chasing Fiona
Fiona has organized her entire life around retiring at 42 — she saves 52% of her income, tracks every dollar, and has publicly announced the date to family, friends, and her 11k Twitter followers. Then she runs an actual Monte Carlo simulation and discovers her plan has a 67% success rate, not the 95% she assumed. FIRE is not just her financial strategy; it is her identity, and the spreadsheet is now telling her the story she has been living for five years has a plot hole.
Financial Snapshot
$128,000
Annual Income
$387,000
Net Worth
33
Age
FIRE-Chasing Fiona's Story — 6 Episodes
The Withdrawal Strategy
Fiona designs her drawdown plan: which accounts to tap first, how to manage the Roth conversion ladder, and how to generate income without triggering ACA subsidy cliffs. The final model integrates everything — allocation, location, healthcare, and withdrawal sequencing.
Uses: roth-vs-traditionalThe Geographic Arbitrage Play
Fiona earns $128k in Portland. Her company allows full remote. She models relocating to Medford, OR, where housing costs are materially lower. The combination of lower expenses and the same income accelerates her FIRE date dramatically.
Uses: fireThe Identity Reckoning
Fiona's revised FIRE date is now 44, not 42. She told 11,000 followers she would be done at 42. She models a compromise: Coast FIRE at 42 — stop saving, work part-time, and let compounding close the gap. The numbers are better than expected.
Uses: fireThe Healthcare Cliff
Fiona's employer health insurance costs her $180/month. An ACA marketplace plan for a single 42-year-old in Portland is $680/month — and that is before dental and vision. She models the full healthcare cost of early retirement through age 65 when Medicare kicks in.
Uses: fireThe Bond Allocation Debate
Fiona's FIRE community says bonds are for cowards. Her model says 20% bonds dramatically improves her sequence-of-returns resilience. She has to choose between community orthodoxy and mathematical reality.
Uses: roth-vs-traditionalThe Monte Carlo Problem
Fiona runs her FIRE model in Worthune for the first time. Her straight-line projection suggests she'll hit her target number by 42. But the Monte Carlo simulation, under her baseline assumptions, shows only a roughly two-thirds success rate — meaning in a meaningful share of scenarios, she runs out of money before 85. The problem is sequence-of-returns risk in the first decade of retirement.
Uses: fire