While events in Tunisia, beginning mid-December and leading ultimately to President Ben Ali’s departure within a month, have rocked the Arab world, they leave an open question: Will Tunisia’s Jasmine Revolution ultimately lead to the Arab world’s first liberal democracy? If the relationship between demographic change and democratic liberalization remains as robust as it has over the past 40 years, the odds are in Tunisia’s favor. For now, those outside Tunisia can only watch and wait. But if you’re watching, do some political demography of your own: Demonstrations that feature young women, the middle-aged, and perhaps even entire families, are a sign that democracy is on its way. Crowds entirely dominated by young men and boys – the social remnant of Tunisia’s waning youth bulge – tell a different story.