Does it? Read it a while ago. However, I’m terrible at recalling specifics in books. I like to think I let books adjust my world model view rather than recall specifics - that’s my excuse anyway :-)
Discussion
It’s basically a erite-up on their world travels with some innovative creative hacks— on a budget. The other big theme is to take the plunge and figure things out along the way along with some of the challenges and fun they had.