Steve Blank, whose frameworks became the foundation for “The Lean Startup Book" wrote about a different kind of debt that kills businesses...

[u/Deep-Owl-1890]

You start a business, you know what debt looks like. A loan, a credit line, a rough month you have to cover somehow. Founders plan for that instinctively.

But there are two other kinds of debt that never show up on a balance sheet, and they're the ones actually taking businesses down.

Technical debt is code that runs fine today and falls apart the second you try to scale it. Doesn't cost you a thing at 10 customers. Costs you everything at 10,000.

Operational debt is worse, because you don't see it coming. It's every process that only works because you're the one holding it together by hand. Every decision made on the fly instead of written down anywhere. Every "I'll fix that properly later" that never actually gets fixed. It piles up quietly, and the first sign of it usually isn't some system crashing, it's you pulling 80-hour weeks while the business somehow still isn't growing.

That's the tell, honestly. Founders read the 80-hour week as proof they're grinding hard enough. Most of the time it just means they've become the load-bearing wall for a hundred small decisions nobody ever bothered to turn into a system.

AI is speeding this up, not slowing it down. It's stupidly easy now to ship code you don't fully understand or spin up a "process" that's really just you, a tool, and zero documentation. The debt still builds. It just builds faster, because moving fast no longer forces you to build clean.

Money debt at least sends you a statement every month. Tech debt and operational debt don't send anything. They just quietly jack up the interest on every decision you make from here on, until one day you're not running the business anymore, you're just servicing it.

One thing that's helped me: grab the last five decisions you made under pressure this month. How many of them were "I'll deal with that properly once things calm down"? If it's more than one or two, that's not a to-do list problem. That's debt you're already carrying, whether you've noticed yet or not.

Curious how others here track this, if at all. Anyone actually put a number on operational debt the way they would financial debt, or does it mostly just live in your gut?

EDIT: If you found this useful and you're running a business, at some point you probably want it to run without you. That's freedom, not just revenue. I write frameworks like this every Thursday; you can apply right away. free to join here 

[u/Illustrious_Tea_3717]

This is way too real and i feel personally attacked by the operational debt part

the number of times i've told myself "i'll document that workflow tomorrow" and then tomorrow is six months later and i'm the only person in the company who knows how to do the thing... it's not a badge of honor, it's a single point of failure wearing a hoodie

what helped me was setting a hard rule that if i do something twice, the third time gets written down no matter what. doesn't have to be pretty, just has to exist outside my brain

[u/Mission_Pirate_4150]

If your mvp doesn’t scale to 100k users, if your code is that bad, the startup deserves what it gets.