We’ve had revolution in Tunisia, Egypt’s Mubarak is teetering; in Yemen, Jordan and Syria suddenly protests have appeared. In Ireland young techno-savvy professionals are agitating for a “Second Republic”; in France the youth from banlieues battled police on the streets to defend the retirement rights of 60-year olds; in Greece striking and rioting have become a national pastime. And in Britain we’ve had riots and student occupations that changed the political mood. What’s going on? What’s the wider social dynamic?