This week, I caught up with a founder who’s out of runway. He raised several million dollars from VCs to fund the company for four years. After several pivots, they found a product that customers love and are paying for. But they don’t have enough cash left to accelerate the search for enough customers to reach cash-flow breakeven. Investors aren’t willing to invest additional funds.

He shared with me his biggest learning from his four-year experience:

Bootstrap as long as possible before raising venture capital. Being low on funds forces you to be laser focused on problems customers are willing to pay to solve. After you build a solution and customers are paying for it, raise capital to scale it. Raising a ton of cash too early increases the risk of building nice-to-have solutions rather than solutions to truly painful problems. A nice-to-have is like a faulty foundation under your house. You’re constantly trying to fix it, but that’s hard to do because of all the stuff on top of it.

Every founder’s situation is different, but I do agree that too many resources too early can lead to a lack of focus. When resources constrain you, you’re forced to focus only on what truly matters and what customers will actually pay for. Focus fixes everything, and constraints force you to focus.