The book's author and her husband lived a highly frugal life for about ten years, before they finally established a passive income stream stable enough for them to afford a semi-retirement lifestyle in which they regularly travel around the world. The author's success in achieving her goal demonstrates the viability of an alternative life path in which one works, saves, and invests tirelessly for many years right after college graduation so as to secure and start enjoying a financially independent lifestyle in his/her 30s. However, aside from mentioning their continuous investment in dividend-yielding ETFs, no further information is given regarding how exactly to construct and manage one's ETF portfolios. Also, the book's central message is inspiring, but would have been delivered much more strongly if half of its contents weren't essentially just the author's travelogue.