🌵 The 10-Year Window Most People Miss
The shopkeepers were washing down the sidewalks when I arrived.
Paris at dawn is quieter than you'd expect — a few delivery trucks, the sound of water on cobblestones, the city coming back to itself before the tourists find it. I had slipped out of the hotel while my wife and son still slept, found a café table facing the street, and ordered a café américain and a pain au chocolat.
I had my fountain pen with me. I always do.
I sat there for an hour, maybe longer. The Eiffel Tower was visible in the distance, catching the early light. I wrote. I prayed. I asked hard questions about my life — about the road warrior schedule that had brought me here on accumulated points and miles, about the window I could feel closing, about what it would take to do more of this and less of that. Not someday. Now.
I was in the middle of one of the most demanding seasons of my career. Sixty-hour weeks, two hundred thousand miles a year, a full life at home I kept promising to be more present for. And here I was at a sidewalk café in Paris at sunrise, finally being the person I had been meaning to become.
I kept asking myself: why did it take so long to get here? And how do I get back?
Every night away from home, every red-eye across time zones, every hotel room while my family was somewhere else — all of it converting quietly into points and miles I never got around to spending on anything that mattered.
Until the summer my son graduated high school.
I decided that trip was going to be different. Two weeks. Europe. Phone down. The accumulated currency of years away from the people I loved, finally spent on them.
We started in London. My son stood in front of medieval armor and crown jewels at the Tower of London with the wide eyes of someone encountering history for the first time. My wife had planned something else special for us — the Harry Potter sets outside the city, then Oxford, where C.S. Lewis, J.R.R. Tolkien, and the other Inklings once gathered to read their work aloud. She walked us through the pubs and lamp posts and landscape details that had inspired Narnia. She had been waiting for this part of the trip, and it showed.
Then Paris. My wife speaks French. My son and I do not. She became our guide — finding the patisserie no guidebook lists, reading reviews written in French to find the places where tourists simply do not go. Shopkeepers who would have ignored us responded to her, and she took quiet joy in that.
In Ireland, I booked a proper high tea for my wife, son and me at a castle. Scones, Devonshire cream, chocolate-covered strawberries, tea poured with ceremony. An afternoon with nowhere else to be.
Some evenings my son found a quiet bar, and we played cards, and talked about nothing important and everything that mattered. I listened more than I spoke. The relationship between us was shifting in real time.
I had taken vacations before. But I had never taken one like this.
It had been twenty-five years since I had taken two full weeks completely off. I came home a different person than I left.
The Window You're Either In, Missing, or Just Past
If you're somewhere between 45 and 55 right now, I want to say something directly:
You are in the most leveraged decade of your financial and personal life. And most people sleepwalk through it.
Not because they're lazy or unaware. Because they're busy. Because the career is still demanding. Because the kids are almost launched but not quite. Because retirement feels close enough to see but far enough to defer. Because the one-more-year loop is seductive and each individual year seems completely reasonable.
The aggregate cost only becomes visible in hindsight. And by then the window has passed.
Here's what makes this decade different from every other:
The math is working harder than at any other point in your career. A dollar invested at 45 has more than 20 years to compound before traditional retirement age. The same dollar invested at 55 has ten. The difference is not linear — it's exponential. I know someone in this community who started genuinely behind and reached financial independence in under a decade. Remarkable. Possible. But it required relentless focus, real education, and intentional aggressive action. The window is real and it closes. If you're in it, use it.
The expenses are lower than they've been in decades. Kids launched or nearly so. Mortgage often paid or nearly paid. The financial drag of the early family years is lifting precisely when earning power is at its peak. That gap between peak income and reduced obligations is the window. Most people fill it with lifestyle inflation. The ones who use it intentionally build the foundation for everything that comes next.
The identity is finally clarifying. The noise of early career ambition, the demands of young children, the proving-yourself phase of professional life — much of that is quieting in your late 40s and early 50s. The question "what do I actually want?" becomes answerable in a way it simply wasn't at 35. Most people miss it because they don't dream big enough, or they're too busy or too scared to sit with the answer. If you don't know what you want, you surely won't get it. Don't let the window close before you ask. If you are 50, successful on paper, and still telling yourself you will get around to the important things later — this post is written for you. And you should feel the window in it.
The next chapter can be built in parallel — right now, while you're still resourced. Whether that's a Next Endeavor generating meaningful income, a retirement built around genuine purpose, or something you haven't yet named — the people who arrive at that transition already knowing what it's for almost universally started figuring it out during this decade. I wrote more about this in How FI Led Me to FINE if you want to go deeper.
What People Do Instead
The one-more-year loop gets most of the attention. But it's not the only way to waste the window.
Lifestyle inflation absorbs the gain. The mortgage gets smaller and the car gets bigger. The kids leave for college and the kitchen gets renovated. The income rises and so does the spending, and the gap that should be building the foundation gets filled instead with things that feel like rewards but function like anchors. If you've ever felt that way about your own life, Cutting the Ankle Weights is worth a read.
The corporate footprint keeps expanding. More responsibility. More travel. More visibility. More stress. The decade when you should be quietly reducing the footprint is often the decade when it is largest. The promotions arrive, the demands compound, and the body absorbs it because bodies in their late 40s and early 50s are still capable of absorbing a great deal. For a while.
Health gets deferred. This is the one that concerns me most. The FI community talks constantly about portfolio optimization and almost never about body optimization. You can run every scenario imaginable and still arrive at retirement physically depleted — rich in assets, limited in the health required to enjoy them. I have a term for this: PD. Physically Depleted. A full portfolio and a body that cannot do what retirement is supposed to be for is not true financial freedom. It is a different kind of trap.
The next chapter never gets tested. The idea stays an idea. The experiment never gets run. And then one day the career ends and you arrive at the transition without any evidence that the next thing will work, without the confidence that only comes from having already begun.
What I Did With My Window
I am 52. Still in it, though the far edge is visible. Here is what I have done with this decade — the good, and the parts I wish I had done earlier.
I finally took health seriously.
At 50, I switched doctors. My previous doctor was a good person in a broken system — overworked, hundreds of patients, five-minute appointments. Labs would come back and an assistant would call to say certain numbers were not looking good. When I asked what specifically to do, the answer was "eat healthier" or "reduce stress" or — I am not making this up — "Google it." As if a person working 60-hour weeks and traveling 200,000 miles a year could solve a metabolic problem with a search engine.
The new doctor told me at our first appointment that I was at a crossroads. At 50, he said, you either make important changes and get into some of the best shape of your life — or the alternative is a slow and eventually rapid decline. He was specific in a way my previous doctor never was. Lift three times a week. Here is why physical balance and flexibility matter more than raw strength at this age. Here is the protein target. Here are the calorie and macro targets for each day of the week. Here is why building muscle now dramatically changes your mobility and independence at 70, 75, 80.
I paid a membership fee I initially questioned and have never once regretted. What would I pay for three more years of health, seven more years of the mobility to travel and hike and really live? The fee is a fraction of one vacation. The return is measured in decades.
I recognize not everyone can access this model — but the principle holds regardless of what your insurance looks like. Find a doctor who treats you like a patient rather than a number. Ask harder questions. Advocate for yourself. The standard system rewards volume, not outcomes. You may have to push.
In the years since, I got stronger, leaner, and more mobile than I had been in fifteen years. I will be honest — I’m light years better, but still a work in progress. But the trajectory has reversed and I feel it every morning.
Think of it this way: a car that looks fine from the outside, still runs. But the frame has been quietly rusting, something rattles when you turn too sharply, and the shocks are shot in ways that won't be obvious until you really need them. You cannot defer that maintenance indefinitely and then wonder why the car fails when you finally have time to drive it somewhere worth going. Bodies work exactly the same way.
Health is a form of wealth. I believe that now in a way I did not at 45.
I started building something new.
I began writing during this window — testing whether the thinking I had been doing on long desert hikes had any value for other people. This summer my son joined that work, handling social media and analytics. I get to watch him bring skills and perspective I do not have, and to discover each other in a context we never had before.
I would have regretted not trying this. I am glad I did.
I invested in our marriage.
Thirty years in, this is still the most important investment I make. The anniversary trip my wife and I are planning this winter — something we have wanted to do for years — is not a luxury. It is a priority. None of us is promised tomorrow, the window is finite and so is every shared season of life.
We made the trip.
The London and Paris trip three years ago was built on points and miles accumulated over years of travel. I came home having given my son and my wife something I could not have given any other way, and received something from both of them I did not know I needed.
The window gave us that. I almost let it pass.
What the Window Actually Requires
Start with the math, but do not stop there. Save aggressively during peak earning years. Pay off the house if you can. Let compounding run at full strength while the obligations are shrinking. The math is unambiguous and it matters enormously.
Do the identity work in parallel. What is the next chapter actually for? What would you do if the paycheck stopped tomorrow? What experiments do you need to run while you still have margin to absorb failure? This work takes longer than you think and it cannot be outsourced to a spreadsheet.
Invest in your health before you think you need to. The rusted car does not announce its decline until the moment you actually need it. The mobility, strength, and energy you build in your 50s directly determines the quality of the decades that follow. Start before you feel behind.
Give the relationships some of the peak earning years — not just the money they generate, but the time and presence they require. The trip. The dinner. The evening with no agenda. These are not rewards deferred until retirement. They are available now, during the window, if you choose to access them.
If you are feeling behind, do not give up on yourself. Colonel Sanders was 62 when he franchised KFC. Ray Kroc was 52 when he built McDonald's into what it became. The 45-55 window is extraordinarily leveraged. Use it well if you are in it. And if you feel you have already missed it — the second best time to start is today. And if your window has already closed, you now know what to tell someone still in it—and many of these principles will benefit you even in a later season.
Coming Home
I keep thinking about that morning in Paris.
The shopkeepers had moved on by the time I closed my notebook. The city was waking up around me. My wife and son would be stirring soon, ready for whatever the day held. But for that hour I had been fully present with the questions that matter most — not optimizing, not planning, not performing. Just sitting with God and a fountain pen and the honest inventory of a life at its midpoint.
Teach us to number our days aright, that we may gain a heart of wisdom.
I have not always lived that verse. But I am learning to. The window is part of how I am learning.
The life I had been building the financial foundation for was available right then — not at retirement, not when everything was finally in order, but at a sidewalk café in Paris at sunrise, if I chose to show up for it.
That morning was three years ago. I am still living off what it taught me.
Stop deferring. Start living the life you have been building toward.
The window is open.
Use it.
Let's get about the business of really living.
🌵 Desert FI
New here? A few good places to start:
The Moment I Realized the Life I Built Wasn't the Life I Wanted— where this journey began
I'm Not Leaving Yet — on timing the exit with intention
The Four Types of Work— on finding the work worth doing
Not yet on the trail? Weekend Reflections goes out every Sunday morning — a personal letter on money, meaning, and the courage to build a life that finally feels like your own. Join us at DesertFI.org/join.
