Still meditating on Which Path to Persia.
The authors say that Iran is a totalitarian hellhole, but it's hard to predict what they will do, and how they react, and they can change their position a lot, because one can never know whom they'll elect as a president and there are many interest groups and cliques and whatever.
So democracy is bad now, and Iran is not centralized?
But turn this around and let's take a look as Iran at the US. They see a fickle country with you can make a deal today, but the next POTUS could throw the deal into the trash tomorrow. Would Iran listen to the promises they make? And why would she listen?