The book’s ideas about using your 9-to-5 as a launch pad are good. He recommends maximizing all the benefits you can get from your job, which will definitely help you save money. Also, use the day job to diversify skills, which makes it easier to side hustle. Take advantage of those conferences your manager send you to, so you can network and learn new things. He advises understanding what your actual hourly rate is, so when you’re making purchases you can think how much work you have to do to pay it off. Or how it will slow down reaching financial freedom. Invest early and often!
Assuming you are doing pretty well and are happy with your current standard of living, what would you need to maintain your standard of living in retirement? Knowing you are on track to accumulate a nest egg to support that lifestyle is a big win. Gold medals go to those who have accumulated enough assets, or passive income streams, to be in a position to retire well.