There are probably more annoying things than being hectored about African development by a wealthy Irish rock star in a cowboy hat, but I can't think of one at the moment. ↗
A travel book is about someone who goes somewhere, travels on the ground, sees something and spends quite a lot of time doing it, and has a hard time, and then comes back and writes about it. It's not about inventing. ↗
I know there are writers who feel unhappy with domesticity and who even manufacture domestic turmoil in order to have something to write about. With me, though, the happier I feel, the better I write. ↗