Exactly. And circumstances can change really quickly. So I wanted it to be enduring and meant partly just avoiding changing things and changing these and avoiding these controversial ones. But I, of course I think about them. And so like a lot of my time, I decided actually last year to teach a class where I'd take all these contemporary conflicts I wasn't working on the book and where I wasn't really an expert, whether it's India, Pakistan, China, Taiwan, Israel, Palestine, Mexican cartel state drug wars and a few others.