[guyomes]

According to the book "A Convergence of Civilizations" from Youssef Courbage and Emmanuel Todd [1], the Iran revolution actually happened at the end of the 70s. And indeed, the political situation is not stable yet. The authors argue in the book that historically, it can take from 30 to more than 100 years before a country gets a stable democracy after a revolution.

Notably, the book was written before the Arab Spring revolutions, and yet, it predicted them rather accurately. The main thesis of the book is that a revolution arises when most of the men and most of the women in a country can read.

[1]: https://cup.columbia.edu/book/a-convergence-of-civilizations...