[rocannon]

I think the book is worth reading. His inspiration for writing 4HWW was his experience running a supplement business, which he later sold - https://en.wikipedia.org/wiki/Tim_Ferriss#Career

Prior to reading the book, I had a retire-early mindset. My idea was to work hard at high paying jobs and save a lot so I could retire early. After reading the book, I had the idea to create multiple streams of income in order to achieve the goal of retiring early.

Others have mentioned that it's not easy to find a lifestyle business that earns you enough income to live off of, and I've also had that problem. However, I've had partial success. I don't think I'd have ever pursued this path without reading 4HWW. It's not an instruction manual, though.