I have an issue with the author calling it an 'investment' mindset. This is what consultants as part of their job. Taking their underlying assets (skills, netwo

I have an issue with the author calling it an 'investment' mindset. This is what consultants as part of their job. Taking their underlying assets (skills, network) and providing services to customers seeking these skillsets. Calling it an investment mindset misses the actual point, that is most people when they talk about investment are mostly referring to things like - real estate, the stock market where they don't have to spend significant time doing that activity. One of the things I'm interested in knowing, is this something the author is doing full-time or is he does to support his other full-time activity? Some data about the revenue the author is making would be helpful.