What is a common misconception about the stages of building a company?

There's a misconception that starting a company simply involves having an idea that takes off, followed by managing growth. Brian Chesky explains that this glosses over multiple critical stages of company building. While stage one is relatively straightforward (solving a problem, doing things that don't scale, finding 100 people who love it, and having great co-founders), the subsequent stages (two through five) are actually equally or more complicated than the initial phase. For a strong foundation, he recommends having full-stack designers and engineers on the founding team.