“I’m not looking for a human SIP,” he wrote. “Obviously.”
He was joking. He also wasn’t.
It’s a plan that starts out sounding like classic lean FIRE, which needs a small number and a fast exit, and, by the end of his post, quietly turns into something closer to fat FIRE. He never uses either term. I will and compare lean FIRE vs fat FIRE.
A 27-Year-Old’s Very Specific Plan to Retire by 35
A few weeks ago, I came across something a stranger had written online. Twenty-seven years old, an engineer, a decent corporate salary, and a plan built down to the rupee.
Twenty lakh already saved. A little over a lakh a month going into SIPs, split mostly across small-cap and index funds, stepping up five percent a year. Run that at twelve percent for eight years, and he lands close to two and a half crore—his target corpus and his ticket out of corporate life by thirty-five.
He had rules for himself, stated as plainly as line items. No big house before fifty, unless someone gifts him one. No car before thirty, and even then, nothing extravagant. And the one that stopped me: a wife whose financial goals aligned with his own. Someone who could bring her own income into the plan.
He’d already directed a web series before any of this. It had done reasonably well. His parents put him on a bus to Bangalore anyway and told him, in his own words, that was enough of that nonsense.
The post was funny, in the specific way people are funny when they are not, underneath it, doing especially well.
The Budget That Barely Held Together
The rest of the post was arithmetic, and he’d clearly done his homework.
Once the corpus was built, the plan was a systematic withdrawal—roughly a lakh a month, either drawn from a balanced fund or generated by splitting the corpus between fixed deposits and equity. Enough, he assumed, to live on while he wrote and pitched scripts, picked up the odd paid writing gig, and became what he called, only half-joking, professionally unemployed.
Then he ran a second calculation almost as an afterthought, and it’s the one that actually mattered: could a family of four live on that same lakh a month in a metro city once he actually had a family?
He wrote out the household budget. Groceries, vegetables, and dairy. Rent for a modest two-bedroom. Two children’s school fees. Basic health and life insurance. A little for restaurants, a little for movies, nothing extravagant anywhere. It added up to almost exactly a lakh—no cushion, nothing spare, and by his own admission, nothing set aside for the things that actually break a plan like this: a medical emergency, a child’s college years down the line, a house repair, a car.
He’d built a number that worked, in theory, for the version of his life that didn’t yet include a spouse or children. The moment he added them back in, on paper, it stopped working cleanly. And that’s the exact moment the post changes.
The Number That Moved Twice in One Post
By the end of it, he’d talked himself out of his plan.
Maybe two and a half crore wasn’t the real number. Maybe it was five. Maybe he wasn’t retiring at thirty-five—maybe it was forty-five. And if he was going to be working until forty-five regardless, he asked, almost as a throwaway line at the very end, what exactly was he retiring from?
That question is the only one in the entire post that actually matters. I’ll come back to it.
I’ve written before about how a FIRE number tends to move—not because life gets genuinely more expensive with each recalculation, but because the picture underneath the number was never fully built to begin with. Usually that pattern plays out over years, quietly, one recalculation at a time, easy to miss because it happens so slowly. This post is the same pattern, except you can watch the entire thing happen inside a single piece of writing. He opens with two and a half crore. By the closing lines, he’s talking himself into five or ten years later than planned, and he still hasn’t noticed what actually moved.
Lean FIRE vs Fat FIRE: What He Was Actually Asking For
There’s a useful distinction inside the FIRE community—lean FIRE vs fat FIRE—that he never used, but that names exactly what happened to his plan.
LeanFIRE is financial independence built on a smaller number and a simpler life. You retire sooner because you need less to sustain yourself once you stop. FatFIRE is the opposite instinct: a bigger corpus, real margin, enough cushion that an emergency or a bad year doesn’t threaten the whole structure. Neither one is more virtuous than the other. They’re just different trade-offs between time and comfort.
He then started the post-lean FIRE math. Two and a half crore, a lean household, and a fast exit. By the end, without seeming to notice the shift, he’d quietly rebuilt the entire plan around fat FIRE-level comfort: a proper family budget, real margin for school fees and emergencies, and a life with actual cushion in it. He just didn’t want to build the number that a life like that actually requires. He wanted someone else’s salary to close the gap instead.
That’s not a failure of arithmetic. He’d shown, in real detail, that the math worked cleanly enough for a single person living lean. It stopped working the moment he added a spouse and two children to the picture and still expected the number to stay exactly the same size. What he actually needed wasn’t a bigger corpus or a co-signer. It was permission to admit that the life he wanted was never really the lean one and to go build the number that life actually costs, on his own terms, before asking anyone else to help carry it.
The Same Pattern, Twenty Years Later
I’ve sat across from a version of this same move more times than I can count. It just wears a much more expensive suit by the time it reaches me.
A founder I worked with for the better part of a year kept telling me he couldn’t step back from day-to-day operations until his co-founder was “fully on board” with the succession plan. Every conversation we had circled back to the same sentence—as though the co-founder’s agreement was the missing ingredient, rather than the founder’s own clarity about what he actually wanted his role to become.
I asked him once, directly: If your co-founder agreed tomorrow, would you actually step back? He went quiet for long enough that the answer was obvious to both of us. He wasn’t waiting on his co-founder. He was waiting on himself and had built a very convincing story about whose signature was actually missing.
I’ve watched the same thing from a CXO who told me, three years running, that she’d leave once her husband’s business “”stabilized”—the business somehow never quite arriving at stable, on schedule, year after year. And from a board that needed to “align” before a CEO would commit to a decision he had, in every private conversation with me, already made.
In every version, the requirement sounds financial or procedural or reasonable. Someone else’s number. Someone else’s buy-in. Someone else’s timeline. But sit with any of them long enough and the actual thing being asked for isn’t money, or alignment, or a signature. It’s permission—a way of not having to be the one who decided, alone, that the life on the other side of the decision was worth building.
The twenty-seven-year-old on a matrimonial site and the CXO waiting on her husband’s business are doing the identical thing. One is shopping for it with a spreadsheet and a marriage-market filter attached. The other is shopping for it in a boardroom. Neither would put it that way unprompted. Both would probably recognize it the moment someone named it plainly.
What You’re Actually Asking the Other Person to Provide
Here’s the honest version of what a genuinely lean plan requires, if you actually mean it: the number has to work on what you alone are bringing to it.
That’s not an argument against building a life with someone else. Plenty of good marriages run on two incomes, by mutual choice, built together from the start, with both people’s numbers folded in honestly from day one. The problem was never sharing a financial life with a partner. The problem is building the exit plan first, discovering the gap it leaves, and only then going looking for a person shaped exactly like the gap.
If a plan only works because someone else’s salary is quietly expected to fill the difference, it was never really the lean plan it was presented as. It’s a fat one with an unnamed co-signer, and the actual work—building a version that’s honestly yours, on your own number, with your own margin—hasn’t happened yet.
To his credit, he was self-aware enough to make the joke about not wanting a human SIP. That’s closer to the real answer than most people get on their first pass at this. He just didn’t follow the joke to where it actually led. The question he asked almost by accident, right at the end of his post: “If he’s working until forty-five anyway, what exactly is he retiring from?” deserves far more of his attention than the spreadsheet does. So does anyone else’s version of the same question, wherever it’s currently waiting for somebody else’s yes?
I run a four-day retreat in Dehradun called Viram, built around exactly this kind of question—the ones people quietly outsource to a spouse, a co-founder, or a board because asking someone else to decide feels safer than deciding alone.