The last time I started a technology company, I was 25 years old.
It was 2007. I had two years of corporate America under my belt, a masters-level entrepreneurship course from Southern Methodist University, a few thousand dollars from a year-end bonus, and more hunger than sense. I used every bit of that bonus to launch Rethink, a platform built on Salesforce.com that would eventually serve thousands of commercial real estate professionals and, years later, result in a private equity exit.
Almost everyone around me told me I was making a mistake. The housing market was collapsing. Bear Stearns was about to go under. Lehman was on deck. Friends, family, mentors all said the same thing: "Wait. This is the worst possible time to start a company."
My take then is the same take I would give any first-time founder today: when you're starting with zero, there is nowhere to go but up. A recession, a crash, a credit freeze, those are problems for companies that already have revenue to protect. When you don't have anything yet, the economic environment is almost irrelevant. What matters is whether you can build the thing, whether customers will pay for it, and whether you can outlast the other founders trying to do the same.
I could outlast them. I was 25. I had no kids. No wife. No girlfriend. When I traveled for work, I crashed on friends' couches. When I needed to pull 18-hour days, I pulled 18-hour days. For weeks at a time. I had the energy, the time, the focus, and absolutely nothing else pulling on me. That is a very specific and fleeting season of life, and I am genuinely grateful I had it when I did.
I built Rethink on that season.
Eighteen Years Later
I am 43 now. I have three kids under the age of four (a three-year-old, a two-year-old, and a one-year-old), and my wife and I have another on the way.
The math on my life has changed completely.
I cannot pull 18-hour days anymore. Not because I lack the will, but because I refuse to miss bath time, bedtime stories, and the version of my kids who are only going to be this small for a few more years. That time is non-negotiable. It is also, frankly, the thing that keeps me grounded while I build a company.
So when I decided to start LenderBox, I knew going in that I did not have the luxury of brute-forcing my way through every problem the way I did at 25. I had to be strategic. I had to be efficient. I had to rely on pattern recognition from Rethink, and there was a lot of pattern recognition to rely on, because I made a lot of mistakes building that first company.
The Mistakes That Made Me Better the Second Time
I will not pretend building Rethink was a straight line. It was not. I overhired at the wrong times and underhired at the right ones. I said yes to customers I should have said no to, and I said no to partnerships I should have embraced. I built features that nobody asked for and delayed features that everyone was begging for. I confused revenue with product-market fit and mistook busy for productive. I let perfect be the enemy of shipped, and other times I shipped when I should have waited.
Every one of those mistakes cost me time, money, or momentum. Usually all three.
Here's the gift of doing it a second time: most of those mistakes are patterns I can now spot from a mile away. When my team and I are evaluating a hire, a partnership, a feature, a pricing change, or a go-to-market decision, I am not reasoning from first principles. I am reasoning from scars. That shortens the decision cycle dramatically.
There is a version of experience that calcifies into "we've always done it this way." I try hard not to let that happen to me. The version of experience I trust is the kind that helps you avoid repeating expensive mistakes while staying open to the fact that new technology, new markets, and new customer needs demand new approaches. Rethink's playbook would not work for LenderBox. But the lessons I learned running Rethink absolutely do.
The Thing That Changed Everything
Here is what makes starting LenderBox in 2026 fundamentally different from starting Rethink in 2008: artificial intelligence has changed what one person, or one small team, can actually accomplish in a day.
I am not exaggerating when I say AI is woven into every facet of how LenderBox operates. Our engineering velocity is multiples of what it would have been five years ago. Our research depth on prospects, on market trends, on competitive positioning, is deeper and faster than anything I could have assembled at Rethink with a team three times the size. Our marketing, content, sales enablement, customer research, and internal operations all run with AI in the loop at every step.
That is not a marketing line. That is a fact I can point to in our daily workflow. The content my team ships, the deals we originate conversations around, the documents our product processes, the risk analyses we generate, the compliance frameworks we maintain, all of it moves at a speed that would have been unthinkable when I was building Rethink.
What that means for me personally is that the 18-hour days of my 20s have been replaced by something better: 10-hour days of leverage. I am not trying to outwork the market with raw hours. I am trying to outthink it with better tools, better team decisions, and faster iteration loops. And because AI handles so much of the heavy lifting on research, drafting, analysis, and operational tasks, the hours I am working are going into the things that actually require a founder's judgment: customer conversations, product strategy, capital allocation, and people decisions.
That is the real unlock. Not that AI lets you work less. That AI lets you spend your finite hours on the things only you can do.
What I Would Tell My 25-Year-Old Self
If I could go back to 2007 and sit across from the version of me who was about to bootstrap Rethink with a few thousand dollars and a whole lot of confidence, I would tell him three things.
First, the 18-hour days are not a badge of honor. They are a tax you pay because you do not yet know how to leverage a team, a platform, or a set of tools. Pay that tax while you can, because you are about to learn a lot, but do not mistake exhaustion for progress.
Second, the mistakes you are about to make are the tuition for the founder you will become. You will overhire. You will build the wrong thing. You will chase the wrong customer. Every scar compounds into judgment, and judgment is the only thing that actually gets better with time in this game.
Third, your family is going to be the thing that saves you, not the thing that slows you down. The constraint of three kids under four and a fourth on the way is not a drag on the second company. It is the forcing function that makes you build it right the first time.
Why This Time Feels Different
Starting a company at 43 with a young family and a mortgage is a completely different experience than starting one at 25 with a couch to crash on. In almost every way, it is harder. In the ways that matter most, it is better.
I am building LenderBox with cleaner judgment, better pattern recognition, tighter focus, more leverage, and a clearer understanding of what actually matters than I had the first time around. I am not trying to prove anything to anyone. I am trying to build a platform that fundamentally changes how commercial real estate lending gets done, and to do it in a way that leaves room to be present for my family while I do it.
There is no version of this journey where I get to work like I did at 25. And there is no version where I want to. The season of 18-hour days and friends' couches was exactly right for that company and that moment in my life. The season of strategic, AI-leveraged, family-first company building is exactly right for this one.
Two very different chapters. Same underlying drive. A whole lot more wisdom in the second one, and a whole lot more tools to put that wisdom to work.
If you are a founder right now, at any age, the question is not whether the environment is perfect. It never is. The question is what you have learned that you can bring to bear, what tools you can leverage that did not exist before, and what you are willing to protect along the way that matters more than the company itself.
For me, that list is short: the company matters, my family matters more, and the lessons from the first time around matter every single day.
Vijay Mehra is the CEO and Founder of LenderBox, the AI-powered intelligence platform for commercial real estate lending. With twenty years in CRE as both a technology founder and principal investor, including a prior PE exit with Rethink, a CRE deal management platform, he writes about the intersection of artificial intelligence, commercial lending, and what it takes to build the right company at the right time.
