I believe you have to be willing to be misunderstood if you're going to innovate.
You cannot make a business case that you should be who you are not
For many people, extended reading sessions on an LCD display cause eyestrain.
Am I going to regret leaving Wall Street? No. Will I regret missing the beginning of the Internet? Yes.
There are multiple ways to be externally focused that are very successful. You can be customer-focused or competitor-focused. Some people are internally focused, and if they reach critical mass, they can tip the whole company.
The book is not really the container for the book. The book itself is the narrative. It's the thing that people create.