Inversion doesn’t tell you what to build. It tells you what not to build.

Most founders begin by searching for the right idea. They ask what to build, whether they’re early, or if this could be the next big thing. All of these questions optimize for upside. They assume success and work backward.

In my opinion, inversion flips the direction.

After reading Never Enough, I stopped asking “Is this a great idea?” and started asking something else entirely:

What would make this a bad project?

That single question removes more weak ideas than any brainstorming session ever has for me. It also forces you to put ego aside.

Looking at entrepreneurs who have built something meaningful, especially those who have been through multiple cycles of building and reflection, the pattern is always similar. The path is rarely linear. It’s usually a mix of failed attempts, wrong assumptions, constant adjustments, and long stretches of uncertainty.

As entrepreneurs grow, they don’t get better at predicting success. They get better at removing mistakes before repeating them.

That is inversion in practice.

They stop searching for the perfect idea and start eliminating fragile ones. They focus on building something solid and durable, grounded in a real need, not just urgency.

Applied honestly, inversion quickly removes projects you don’t deeply understand, projects that require users to change behavior without real urgency, projects that only work at scale, that depend on constant motivation to maintain, or that collapse if growth stalls for a few months. What remains may look less exciting at first, but it is far more durable.

Before starting my next project, I try to identify the assumptions I would be most uneasy being wrong about. That discomfort is often where inversion should begin.