The common advice to conduct unbiased discovery interviews sounds logical but often fails. The truest way to validate an idea and understand customer needs is through the act of selling. This forces a concrete value exchange and reveals genuine demand in a way that hypothetical conversations cannot.

Most founders instinctively try to "push" sales forward: creating urgency, sending non-stop follow-ups, and trying to convince prospects. The actual physics of sales is "pull." When a customer has genuine demand and lacks good options, they will do the work—scheduling meetings, bringing in stakeholders, and asking for information—to acquire your solution.

Instead of building in isolation, founders should identify their ideal 'dream customers' and talk to them immediately, even without a product. The fear of being unprepared or rejected is an ego-driven mistake that delays critical feedback and significantly increases the risk of building something nobody wants.

Most startup sales activities are counterproductive. Instead of enabling a purchase, things like outreach, demos, and feature explanations often convince a prospect with genuine "pull" that your product isn't a fit, making your own actions the biggest obstacle to closing a deal.

Founders must do early sales to get unfiltered market feedback. A separate sales team can inadvertently create a "house of mirrors" by massaging the truth to make both the founder and the client feel good, which obscures reality and delays finding product-market fit.

Before scaling a sales organization, founders must personally learn how to sell the product, even if they do it poorly. This hands-on experience provides an invaluable, holistic understanding of the full customer journey, which is critical context that cannot be outsourced or delegated when building a GTM engine.

When a clunky sales process fails, founders often incorrectly conclude their product isn't good enough and retreat to building more features. The real problem is typically the sales motion itself, which isn't aligned with customer demand. This leads to a cycle of building instead of fixing the sales process.

When a company struggles to sell, sales leaders shouldn't just push the team harder. They are uniquely positioned to diagnose product-market fit issues by conducting their own customer development interviews, gathering direct market feedback to bring back to founders and product teams.

Counterintuitively, the key to reducing the overall sales cycle is to spend more time in the discovery phase. A deeper, more curious discovery process builds stronger relationships and uncovers true needs, allowing you to either disqualify faster or accelerate through later stages with a clear path to closing.