Committing all resources to a single demand trigger is a post-product-market fit move. Early on, founders need a broader approach to discover the repeatable patterns of demand. Only after identifying this pattern from early customers can you confidently build a concentrated "tollbooth" around it.

Never start a business without first validating demand by securing commitments from at least three initial clients. This strategy ensures immediate revenue and proves product-market fit from day one, avoiding the common trap of building a service that nobody wants to buy.

Friends provide biased feedback. For a truer market signal, launch a waitlist for your product on a relevant, niche online community like Hacker News. The volume of sign-ups from your target audience provides a far more realistic and valuable measure of initial demand than conversations with your personal network.

While the goal is to build a platform (second-order thinking), initial single-purpose app ideas (first-order) are critical. They serve as your "golden evaluation set"—a collection of core use cases that validate your platform is solving real user problems and is truly useful.

Niching down allows you to dominate a small pond with less competition, enabling higher prices and faster learning. Once you're the "biggest guy in a puddle," you use your acquired skills and resources to graduate to a pond, then a lake, and finally the ocean.

Dara Khosrowshahi argues that entrepreneurs over-index on Total Addressable Market (TAM), which he sees mainly as a fundraising tool. The real focus should be on proving product-market fit and solid unit economics in a small, defensible niche. Once that's established, you can expand into adjacent markets.

Believing you must *convince* the market leads to a dangerous product strategy: building a feature-rich platform to persuade buyers. This delays sales, burns capital, and prevents learning. A "buyer pull" approach focuses on building the minimum product needed to solve one pre-existing problem.

Counterintuitively, focusing on a single, powerful SKU can be more effective for initial growth than launching a full product line. It simplifies your message, makes you attractive to distributors who value efficiency, and builds a strong customer base before you introduce new offerings.

The "stair-step method" mitigates the dual complexity of building and marketing a SaaS from scratch. By first launching a simpler add-on within a marketplace like Shopify or Heroku, founders can leverage a built-in marketing channel, allowing them to master the technical and product challenges of SaaS.