This is a major oversimplification that is not at all feasible for most people. Sure, I could theoretically get an engineering position at Amazon, buy one of the highly desirable multimillion dollar properties within walking distance that sell before they're even on the market, sell my current house, move my family and possessions, and so on. How reasonable do you think that recommendation really is for most people? Also, this is talking about people running their own businesses, and I certainly don't run Amazon or have the funding to both open my own business anywhere near Seattle as well as purchase a house within walking distance. Sure, you can skew the entire scenario and say it's reasonable to work for a major company as an engineer rather than own your own company, rent an apartment rather than buy a house, and make any number of other changes but that isn't really what is being discussed