Quote of the day on Entrepreneurial Judgment by Marc (pmarca),
You’d better not have a lot of doubts about what you are doing because everyone else will, and if you do too, you’ll probably give up.
Of course, an entrepreneur’s doubt avoidance is only a plus right up to the point where it becomes pigheaded stubbornness that interferes with her ability to see reality, particularly when a strategy is not working.
In my view, entrepreneurial judgment is the ability to tell the difference between a situation that’s not working but persistence and iteration will ultimately prove it out, versus a situation that’s not working and additional effort is a destructive waste of time and radical change is necessary.
I don’t believe there are any good rules for being able to tell the difference between the two. Which is one of the main reasons starting a company is so hard.