Lean Startup Lessons: Three Ways to Engineer Growth

Visionaries often fear exposing their ideas to data too early due to the 'go/kill' decision process learned in stage-gate development. The solution is a commitment to iteration, ensuring that even bad news leads to finding a path to the vision rather than prematurely killing a project.

Startups should focus on two core hypotheses: the value hypothesis, which indicates if customers find the product valuable (e.g., repeat use, positive margin), and the growth hypothesis, which addresses how to acquire more customers who find the product valuable. The second is crucial for scaling beyond a small business.

Sustainable growth means that new customers come from the actions of past customers. Other forms of growth, like publicity stunts, are short-term and not sustainable. Startups should measure and focus on this sustainable growth from the beginning.

There are three primary ways past customers help acquire new ones. First, paid acquisition, where revenue from existing customers is reinvested in advertising or sales. Second, viral growth, where the product's use naturally leads to others adopting it (e.g., Facebook, PayPal). Third, sticky growth, where old customers become new customers through repeat engagement or subscription models (e.g., strong network effects). Startups need to specialize in one of these three engines: paid, viral, or sticky.