I argued with this book in the margins more than any other investing book I’ve read. Not because JL Collins is wrong about most things — he isn’t — but because when he’s right, he’s right in a very American way, and the things he leaves out turn out to matter when you’re reading from Seoul.
The Simple Path to Wealth started as a series of blog posts Collins wrote for his daughter (the “Stock Series”), then became a book in 2016. It sold well, got adopted by the FIRE community as a canonical text, and became shorthand for a specific philosophy: buy VTSAX (the Vanguard Total Stock Market Index Fund — the mutual fund cousin of VTI), buy it forever, ignore almost everything else, and retire when your portfolio hits 25x your annual spending.
That philosophy is simpler than Bogle’s, blunter than Housel’s, and — here’s the catch — mostly correct. Simplicity is underrated in investing, and Collins’ biggest contribution is refusing to complicate things. But when simplicity crosses into dogma, the book starts skipping over legitimate disagreements. This post is my attempt to separate the two.
What Collins Gets Right
Simplicity Beats Cleverness
Collins’ central claim is that a single broad-market US index fund, held forever with periodic additions, will beat almost any more complicated strategy an average investor can execute. Not because simple strategies are theoretically optimal — they usually aren’t — but because the more knobs a strategy has, the more opportunities the investor has to break it.
I’ve lived this. The most expensive decisions I’ve made in my portfolio were all “clever” ones. Timing COVID in 2020 (sold at the bottom, bought back higher). Concentrating in QQQ in 2021 (caught the peak). Briefly chasing SCHD + JEPI yield in 2022 (underperformed a plain VTI allocation). Each of these mistakes required some additional decision beyond “buy the index and hold it.” The simpler strategy would have silently beaten me.
Collins’ framing: every extra decision is an extra chance to be wrong. Simple portfolios don’t protect you because they’re smart. They protect you because they take away the knobs.
The F-You Money Concept
One of the best short passages in the book is Collins’ explanation of “F-you money” — enough savings to walk away from a job, a boss, a client, or a life situation without immediate financial pressure. It doesn’t have to be retirement-level money. It’s the amount where, when your boss does something unreasonable, you can choose to not put up with it.
This is the concept I’ve internalized most from the book. When I DCA into VTI every month, I’m not aiming at retirement — I’m aiming at the year my brokerage account balance is high enough that I could take a nine-month career gap without panic. That’s a concrete, near-term goal. It makes the saving real in a way that “retirement at 60” never did.
A note from my own portfolio: I keep a mental number that I won’t publish. When I hit it, the portfolio stops being “long-term retirement savings” and starts being “freedom to make bad short-term decisions.” I learned the framing from Collins. The specific number is mine.
Stop Paying Advisors a Percentage
Collins is brutally critical of the advisor-AUM model (where an advisor charges you 1% of assets per year to manage your portfolio). At 1% a year, compounded over 30 years, the advisor has taken roughly 25–30% of your potential terminal wealth for work that could, in most cases, be replaced by a three-fund portfolio and an annual rebalance.
He’s right. For investors with reasonably simple situations — accumulation-phase, broad-index, no complex tax optimization — the AUM model is expensive relative to what it delivers. The honest alternative is either a flat-fee advisor (pay $2,000–$5,000 once for a comprehensive plan) or DIY with a book like this one as the tutorial.
For DeepAlloc readers specifically: if you’re under 40, DCA-ing into broad ETFs, and your situation fits in one page, you probably don’t need an AUM advisor. Read Collins, read Bogle, automate your contributions, and revisit annually. If your situation is more complex (business equity, inherited wealth, cross-border tax), pay a flat-fee advisor once and apply their plan yourself.
The 4% Rule, With Caveats
Collins endorses the 4% safe withdrawal rate from retirement research — the idea that a portfolio of roughly 75% stocks / 25% bonds can sustain a 4% real (inflation-adjusted) annual withdrawal over a 30-year retirement with high historical probability. He’s appropriately cautious about it — the rule has failure modes in specific historical periods, and a flexible withdrawal approach (spend less in bad years) dominates a fixed 4%.
This is the cleanest layman’s introduction to withdrawal-phase math I’ve read. If you’re within ten years of retirement and you’ve never thought carefully about sequence-of-returns risk, Collins’ chapters on the “wealth preservation” phase are the fastest way in.
Where I Disagree — The VTSAX-Only Chapter
Here’s the main place Collins loses me.
Collins argues that US investors should hold essentially 100% US total market (VTSAX/VTI) during their accumulation phase, with no meaningful international allocation. His argument, in rough form:
- Large US companies are already globally diversified (they earn overseas).
- The US has the strongest legal, economic, and governance framework.
- International funds add complexity and haven’t improved returns over long US-favorable periods.
- Simpler is better; one fund is simplest.
I find this weaker than the rest of the book for several reasons.
First, the “US companies earn overseas” argument conflates revenue geography with asset-class exposure. Apple selling iPhones in Europe doesn’t give me exposure to the European equity market. It gives me exposure to one product category sold in that region, filtered through Apple’s pricing power, currency effects, and US tax jurisdiction. These are not substitutes.
Second, the book doesn’t seriously engage with the 2000–2010 “lost decade” when US equities returned approximately 0% nominal while developed international and emerging markets materially outperformed. If you followed Collins’ advice in January 2000, you would have spent ten years watching your portfolio stagnate while anyone holding VXUS-equivalent exposure did meaningfully better. Collins acknowledges US markets have had bad decades; he doesn’t reconcile that with a 100% US recommendation.
Third, the “home bias is fine” argument works best for Americans. It’s much harder for a Korean, European, or Australian reader to justify. Collins’ book implicitly assumes a US reader with US-dollar expenses. For a reader based outside the US, a 100% US equity portfolio isn’t “home bias,” it’s foreign-market concentration with currency risk. The advice that feels sensible when you earn in dollars and spend in dollars feels very different when you earn in won, yen, or euros and your equity exposure is 100% in one foreign currency.
Fourth, Collins’ own simplicity argument is agnostic between VTI-only and VT (global total market). If simplicity is the virtue, VT is simpler than VTI — it’s one fund, globally diversified, and it auto-rebalances the US/international split as markets move. Collins doesn’t seriously address VT. I suspect this is because the book’s worldview was baked in before VT was as mature as it is today.
My position, stated plainly: I hold ~70% US equity (VTI) and ~30% international (VXUS), which approximately matches a global market-cap weight of 60/40 US/international, adjusted up toward the US a bit because I think US governance and liquidity premia are real. This is the allocation I’d recommend to DeepAlloc readers — see VT vs. VTI + VXUS for the full argument, and US market dominance — will it last? for the longer historical view.
If you read Collins and come away 100% VTI, you are making a specific bet on continued US exceptionalism. That bet may pay off. It also may not. I’d rather size the bet explicitly than have it inherit unexamined from a book.
Smaller Disagreements
”The Stock Market Always Goes Up”
Collins states this several times as a kind of thesis. It’s a useful simplification for discouraging panic-selling, but it’s not quite right in the general form. The US stock market has always gone up eventually, over long enough horizons, because US companies have been remarkably profitable and because the US has had a durable institutional framework. Neither of those conditions was preordained, and neither is guaranteed to continue. Japan’s Nikkei peaked in 1989 and took over 30 years to reclaim that level. Collins would say “Japan is not the US.” I would say “let’s not assume we know what the US’s next 30 years look like.”
The safer version of this thesis is Housel’s: volatility is the fee for long-term equity returns, not a sign you’ve done something wrong. That’s true by construction. “Stocks always go up” is true only with specific country and time-period qualifiers.
Bonds Are Only for Old People
Collins is dismissive of bonds in the accumulation phase — not wrong, but flat. He doesn’t engage with the behavioral role of a small bond allocation (the “ballast so one line is green during a crash” argument I made in my Housel notes). I hold roughly 5% BND not because it improves my expected return — it doesn’t — but because it reduces my odds of panic-selling VTI in a bad year. That’s a valid reason to own something Collins would tell you to skip.
Where the Book Is Simply Dated
The book was written in 2016. Some specific numbers and fund names have aged:
- VTSAX’s expense ratio was 0.04% when the book was written; it’s now 0.04% as well. (This one hasn’t aged.)
- The tax-loss harvesting section reflects pre-2017 US tax law in places; specifics have shifted.
- Robo-advisors get less attention than they probably deserve now.
- The discussion of “just use VTSAX in your 401(k)” assumes a plan with VTSAX. Many plans don’t offer it. The book doesn’t walk through what to substitute when your plan’s menu is a list of mediocre active funds.
These aren’t dealbreakers. They’re just places where you should check current conditions rather than trust the 2016 answer.
Who Should Read This and When
If you’re a beginner overwhelmed by choice: read Collins first. He will give you one concrete portfolio you can implement in an hour. The internet will then try to sell you complications. Ignore them for at least two years.
If you’re already investing and feel over-diversified across 12 ETFs: Collins is the book that gives you permission to consolidate. You probably don’t need sector ETFs, thematic ETFs, or four separate dividend funds. Read Collins, simplify.
If you’re a non-US reader: read it, apply the philosophy, but do not adopt the 100% VTSAX allocation wholesale. Adjust for your currency, your tax situation, and your actual global exposure needs. Collins’ framework survives the translation; his specific US-only portfolio recommendation does not.
If you’re close to retirement: Part IV (wealth preservation) is solid. The broader philosophy holds, but your questions are now about withdrawal rates, sequence risk, and account-type sequencing — topics Collins covers competently, but not exhaustively. Supplement with withdrawal-rate research directly.
One Line to Take Away
Compressed: most portfolios are too complicated, and the complications are usually where the losses come from. Collins’ real contribution is the repeated insistence that you do less. Less trading, less predicting, fewer funds, fewer decisions.
The disagreement about international allocation doesn’t change the main lesson. It just means you should do the “less” thoughtfully, not dogmatically. Pick a long-term allocation you believe in. Automate it. Then stop reading Reddit and let 25 years pass.
That’s the book.