Most founders overestimate what they can learn from reading, meetings, or models. The messy, frustrating, trial-and-error work of building teaches you more in one week than a year of theory. The first prototype will embarrass you. That’s the point because you’re shaping your instincts. Every cut, weld, test, or deploy wires new patterns into your brain. That pattern recognition is your unfair advantage later. You can’t outsource it, and you can’t skip it.