A founder’s other important virtue is the art of filtering. Building a startup is no different than having a roller coaster ride or getting married. People are a priced asset and define success.
It is too easy to get carried away by the opinions of others. It is easy to get stressed on the critical feedback. It is easy to get on an ego trip hearing all the praise.
In the end, the founder’s journey is very lonely, and destiny depends on how he/she sees and sails through it. How much does opinion, praise, or critics matter when they have no skin in the game. They have played, took a demo for 5 minutes?
You have been building a product since inception.
Building a product is hard. Becoming a critic or cheerleader is easy. The sooner you have a Bullshit Detector wired in your head easier your life gets through the journey of running your company.