Isn't this one a little extreme? I started a company in 2004. In 7 months we had sold $92,000. It was slow going, since it was a manufacturing company. In the 8th month we sold $40K, the next month was $60K, the next $72K.... the point is that I never achieved 10% growth on any metric for 7 months, and then it grew like crazy. Had I known how hard it was going to be, I wouldn't have started. Now that I have been through it I have no fear of doing it again. The company has now shipped its 100,000 product (lift kit for pickup truck).
It is a nice honest essay. I just think the one point was too extreme. It is extremely hard to tell when persistence turns into stupidity. I have been both persistent and stupid. I guess if she has spent three years pursuing the vision and it didn't work, then she knows what she is doing.