Prologue

The Most Personal Decision You’ll Ever Make

prologue
personal
career
Why entrepreneurship — solo or otherwise — begins with understanding yourself, your values, and what you want from your career and life.
Author

Dan Green

Published

April 12, 2026

Modified

April 12, 2026

Keywords

entrepreneurship, career decision, personal, values, self-knowledge

The Statistics Class

The most useful skill I have, I learned by accident in the summer of 1982.

Not from an internship. Not from a mentor. From a statistics class I took because it fit my schedule.

My name is Dan Green. I graduated from Michigan Tech in 1983 with a business degree, and for the four decades since, I’ve been working at the intersection of finance, lending, and technology — credit unions, mortgage banking, FinTech startups. In almost every one of those roles, I was the person inside a larger organization trying to build something new from scratch. There’s a name for that: corporate entrepreneur. I’ll come back to it.

But first: the statistics class.

The Summer of ’82

Ask me what my favorite course at Michigan Tech was, and I’ll tell you every time — Econometrics.

That surprises people. It shouldn’t.

The summer of 1982, I decided I was going to actually learn how to understand data. Not just how to run the formulas, but how to think about what the numbers were telling me — and, maybe more important, how to use data to make a point that other people would actually believe. That’s a different skill than knowing the math. You can know every formula in the textbook and still be terrible at making a case with numbers. I was a twenty-something college student trying to get through a hard course in the summer heat. I had no idea I was building something I’d use for forty years.

It showed up when I was underwriting mortgages at scale. It showed up when I was pitching a new product to a board of directors. It showed up when I was trying to convince skeptical investors that a FinTech idea was worth their time. The ability to look at data, understand the relationships inside it, and use it to tell a story — that skill never stopped mattering.

I could not have told you that in 1982. That’s the point.

The skills that end up mattering most are rarely the ones you expected to need. Your job right now isn’t to optimize your resume for the next internship. Your job is to learn how to think.

A Career Doesn’t Go in a Straight Line

I didn’t plan to spend forty years in financial services. It happened because of a sequence of decisions — some deliberate, some accidental, most of them made with incomplete information and more confidence than was probably warranted.

I moved between industries when the opportunity felt right. I took roles where I was building something, even inside companies that already existed. And no matter where I was, I kept returning to the same fundamental questions: What problem is actually worth solving? Who’s going to care? Does this thing actually work?

Those questions don’t change whether you’re founding a company from scratch or trying to launch a new product inside a bank. The entrepreneurial instinct is the same. The skills are the same. The risks are different in degree, but not in kind.

What This Book Is About

Some of you are going to start companies. Some of you will join early-stage startups. Some of you will work inside established organizations and spend your careers trying to make them less stagnant. All of you are going to need to understand how new businesses work — because every organization you ever work for is going to be competing against one.

But before we talk about business models and value propositions, I want to start somewhere that most entrepreneurship books skip entirely.

This book is not a guide to raising a seed round. It’s not a how-to for building a pitch deck. Those things matter, but they come later — much later than most people think.

This book is about the early decisions. The ones you make before you know what your company is called, before you have co-founders, before anyone has given you a dime. It’s about understanding yourself well enough to know whether entrepreneurship — in any form — is actually a path you want to walk, and if so, which version of it fits who you are.

Because here’s what I’ve learned after forty years of building things inside other people’s organizations: entrepreneurship begins with self-knowledge. Not funding. Not market research. Not even a great idea.

It begins with you.

So let’s start there.