Naze Shū 4jikan Hatarakudake De Okanemochi Ni Narerunoka =The 4 Hour Workweek (Tankobon Hardcover)

Ferriss's approach is quite revolutionary—I'm curious what personal experiences or observations led to the development of his methods.

The idea of spreading out retirement into chunks throughout life sounds appealing, but I wonder how feasible it is for most people with real financial commitments.

There are so many tips and techniques, but I wonder what the selection process was like and if some ideas were tested extensively before sharing.