It's trite to say that the world has gotten smaller in the age of globalization, but my travels have told me that it's wrong to think this means there is some kind of uniform world culture.
As a child, I read science fiction, but from the very beginnings of my reading for pleasure, I read a lot of non-fictional history, particularly historical biography.
I've always been interested in the relationship between total external surround, culture, the political matrix, technology, etc., and the internal human consciousness.
The thematic, psychological, and cultural concerns of a writer are more relevant than whatever literary mode he or she chooses to deal with in any given novel.