If you think of all the enduring stories in the world, they're of journeys. Whether it's 'Don Quixote' or 'Ulysses,' there's always this sense of a quest - of a person going away to be tested, and coming back.
The truth is I'm not really interested in travel writing as it's generally conceived, and even less so in female travel writing.
If you are fragmented and uncertain, it is terrifying to find the boundaries of yourself melt.
Its highest point was The Worst Journey in the World. Then you see this decline, and this harking back, using the 19th-century form when we're not in the 19th century. That way of writing a book about the world out there - you just can't do it anymore.
The genre has moved into this commercial aspect of itself, and ignored this extraordinarily rich literature that's filed everywhere else except under travel.
I think a lot of writers are unrealistic about having their books translated into film.
It is always interesting being on films sets - I have done it before with other actor friends - and I just find it fascinating. I just love that collaborative film family that develops around a project.
The romantic view would be that nomads are wonderful people, better than us; they care about the environment.