Insightful in using the concept of "democracy factique" to shed light on the social movement of Hong Kong 2019 onward. A good reader of grasping the key concepts of his teacher and his teacher's teacher's ideas: Giovanni Arrighi, Fernand Braudel and Wallerstein. If every secondary school students have read Hui's work, I am sure they could use a structural, historical and global point of views to explain the place they are in now and what they ought to do.