Basically, the author wants to tell us Jack Dorsey is an a-hole. Considered that he is a very successful businessmen, it's easy to get the conclusion that if you want to be rich and famous, you have to be an a-hole who has to sacrifice your love and friends.

The whole book is very biased, not object at all, which is kind of funny and interesting.

I wish the author can spend more effort to analyze how to be a great a-hole.