What happens when the wrong thing works?
Entrepreneurship starts with experimentation and failure. Learning how to create value for others takes practice, and during that practice, you're going to make things no one wants or cares about.
Thankfully there are ways to shrink the failures and tighten the feedback loops. The Lean Startup Method has saved millions of years of time, encouraging entrepreneurs to build the smallest viable version of their product first instead of wasting years and small fortunes on an unvalidated idea.
The great thing about staying lean is it allows you to rapidly iterate on new ideas, quickly testing businesses to figure out which one will work. The bad part is that in all the excitement of starting and testing ideas, you might not consider what it means to succeed.