Frequently Asked Questions About John's 3-Timeline Index Fund Retirement Framework
20 answers covering everything from basics to advanced usage.
// Basics
What does 'starting from $0' actually mean in this framework?
It means the daily contribution numbers ($6, $22, $120) assume you have zero investable savings today and build your entire $1 million from scratch through contributions plus market growth. If you already have savings invested, those dollars compound alongside your contributions, reducing the daily number you need. The framework is calibrated for the $0 case as its baseline.
Why does the framework default to $1 million as the target?
Because $1 million paired with the 4% Rule generates $40,000/year ($3,333/month) in sustainable withdrawals without depleting principal. Combined with average Social Security (~$2,760/month), that's ~$5,400+/month in total retirement income. If your income goal differs, you scale the portfolio target proportionally — but $1 million is the anchor for all the standard tier math.
What are the three Fidelity funds and their roles?
FXAIX (Fidelity 500 Index Fund) is the foundation, tracking the S&P 500 with a ~0.02% expense ratio and ~12.97% 10-year appreciation. FNCMX (Fidelity NASDAQ Composite) is the growth bridge, tech-heavy with ~16.91% appreciation. FELX (Fidelity Select Semiconductors) is the wild card engine, ~22.04% appreciation but concentrated in one cyclical sector. All three appear in every tier — only the weights change.
// How To
How do I calculate my daily contribution if my timeline is 15 years?
Assign yourself to the closer tier — for 15 years, use the 20-year tier as your base — and flag that your true daily number sits between the two benchmarks. For precision, plug your exact timeline, $1M target, and $0 start into a compound-growth calculator using the interpolated blended appreciation rate. Linear scaling between tiers is only a rough first approximation.
How do I run the income reality check?
Compare your required monthly contribution to your gross household income after living expenses. The 10-year plan needs $3,650/month, realistically requiring ~$120,000+ income. The 20-year plan needs ~$660/month — tight but achievable on $75,000. If your income can't sustain the contribution, redirect to a longer tier. A longer timeline isn't a downgrade; it's what the math allows.
How do I adjust the plan if I want more than $1 million?
Scale the portfolio target proportionally before assigning a tier. If you want $1.5 million, multiply the required daily contribution by roughly 1.5 as a first approximation, then run it through a compound-growth calculator using your tier's blended appreciation rate for accuracy. Also re-run the 4% Rule to confirm the higher target actually meets your annual withdrawal need.
How do I set up these three funds in my Fidelity account?
Open a Fidelity account (a Roth IRA or taxable brokerage depending on your situation), then buy FXAIX, FNCMX, and FELX at your tier's allocation weights. For the 30-year tier that's 60/30/10; for 20-year, 35/40/25; for 10-year, 15/35/50. Automate your daily or monthly contribution and rebalance periodically to keep the weights aligned with your tier.
// Troubleshooting
Why doesn't the 30-year $6/day plan work for a 10-year timeline?
Because each daily number is calibrated to its tier's blended appreciation rate and compounding runway. $6/day over 10 years produces nowhere near $1 million — it lacks both the aggressive FELX-heavy allocation and the personal capital a 10-year plan requires. The numbers aren't interchangeable; a compressed timeline demands both higher contributions and a more aggressive fund mix.
What happens if semiconductors crash while I'm in the 10-year plan?
A semiconductor crash hits the 10-year plan hardest because FELX makes up 50% of that portfolio, and semiconductors are cyclical — they crash hard. Your balance could drop sharply, and with a short runway you have less time to recover before your target date. This concentration risk must be understood before committing; it's the price of buying back time.
My income dropped and I can't sustain my daily contribution. What now?
Shift to a longer timeline tier that matches your new sustainable contribution. Consistency over the full term matters more than the specific plan. Sustainability of the daily contribution is as important as the math — a 30-year plan you can maintain beats a 20-year plan you abandon. Reassign your tier, adjust your fund weights, and recalculate your finish projection.
I started with savings but used the standard daily number. Did I overpay?
You're likely over-contributing relative to what you need, since the tier numbers assume a $0 start. Your existing balance compounds on top of contributions, so you'll either hit $1 million early or could safely lower your daily contribution. Recalculate with your actual starting balance in a compound-growth calculator to find your true adjusted daily number.
// Comparisons
How does this framework compare to just buying a total market index fund?
A total market fund is simpler but timeline-blind — it doesn't tell you your required daily contribution or adjust risk to your runway. This framework layers FNCMX and FELX on top of the S&P 500 foundation specifically to compensate for shorter timelines, and it quantifies exactly how much extra personal capital a compressed runway costs via the Market-to-You Ratio.
How does the 20-year plan compare to the 30-year plan financially?
The 20-year plan reaches ~$1,040,920 with ~$160,600 of personal contributions, versus ~$1,004,150 at only ~$65,700 personal for the 30-year plan. Choosing the 20-year timeline costs roughly $95,000 more out of pocket to buy back 10 years. The 30-year Market-to-You Ratio (~$14:$1) crushes the 20-year (~$5.50:$1) — time is the cheapest source of retirement money.
How does this differ from the FIRE movement's typical advice?
FIRE usually emphasizes a high savings rate and a target multiple of expenses, often with broad index funds. This framework shares the compounding philosophy but is more prescriptive: it gives exact daily numbers, specific Fidelity funds, and tier-based aggressive allocations (up to 50% FELX) for the most compressed FIRE-style 10-year runway. It makes the risk cost of speed explicit.
Is the aggressive 10-year plan better than the safe 30-year plan?
Neither is universally better — it depends on your timeline, income, and risk tolerance. The 30-year plan is mathematically optimal if you have the time, since it requires the least personal capital and highest Market-to-You Ratio. The 10-year plan buys speed at enormous cost (~$438,000 personal vs. ~$65,700) plus concentration risk. Assuming a longer timeline is a failure is a common mistake.
// Advanced
How reliable are the blended appreciation rates in this framework?
The blended rates (~15% for 30-year, ~16.81% for 20-year, ~18.88% for 10-year) are derived from 10-year historical fund averages weighted by allocation. Past performance doesn't guarantee future returns, and the aggressive tiers lean on FELX's ~22% historical rate, which is far from guaranteed. Treat projections as planning estimates, not promises, and revisit them as market conditions change.
Should I rebalance my portfolio, and how often?
Yes — rebalancing keeps your allocation weights aligned with your tier as funds grow at different rates. Since the framework's math depends on precise weights (the Three-Fund Engine only works as designed when weights match the tier), periodic rebalancing, such as annually, prevents drift. In the 10-year plan especially, FELX outperformance can push it well above 50%, amplifying concentration risk.
How does inflation factor into the 4% Rule withdrawals?
In year one of retirement you withdraw 4% ($40,000 on $1 million), then adjust that dollar amount slightly upward each subsequent year for inflation. The rule works because the market typically grows faster than 4%, so the principal usually stays intact or grows even as your inflation-adjusted withdrawals increase. This is why $1 million funds decades of spending.
What's the tax difference between using a Roth IRA versus a taxable account?
The framework's fund selection and daily numbers stay the same, but account type affects your after-tax result. A Roth IRA lets FXAIX, FNCMX, and FELX grow tax-free, ideal for the aggressive FELX gains, but has annual contribution limits that may cap the 10-year plan's $43,800/year. A taxable account has no limits but exposes gains to capital gains tax. Many investors combine both.
Can I interpolate a custom timeline like 25 years precisely?
Yes, but not with simple linear scaling alone. Assign the nearest tier (25 years leans toward the 20-year tier), interpolate the allocation weights and blended appreciation rate between adjacent tiers, then run your exact figures through a compound-growth calculator for the precise daily contribution. The tier benchmarks are anchors; a calculator handles the in-between math accurately.