A great Quora answer from Justine Musk (Elon Musk's ex-wife) on what it takes to become a billionaire: "Shift your focus away from what you want and get deeply, intensely curious about what the world wants and needs. Ask yourself what it is that you have the potential to bring to the world that is so unique and compelling and helpful that no computer could replace it, no one could outsource it, no one could steal your product and make it better and then club you into oblivion (not literally). Then develop that potential."

"The world doesn't throw a billion dollars at a person because the person wants it or works so hard they feel they deserve it. (The world does not care what you want or deserve.)"

She is so spot on — too many people try to dream their way into success and forget if people will really want or need it. Once in awhile, someone will develop a new idea which attracts buyers, but most of the time (95%), no one really cares.

Read the entire Quora answer here.

The venn diagram above is one I present to clients to help them navigate their businesses and careers. 'The World Needs It' and 'You Are Paid For It' are very important parts of this model. Enjoy!

P.S. I've tried to shy away from any reader comments that might focus more on her divorce settlement and pay attention to her advice. Stick to the facts.