Another view on the tragedy of the commons

When doing the previous exercise, some questions and concerns must have crossed your mind about the theory of the tragedy of the commons. Do common resources always degrade or deteriorate? Is community ownership a recipe for disaster? Are humans not capable of preventing this? 

Elinor Ostrom, a political economist, has done extensive research on this topic. Have a look at this video. Do you agree with her? Why or why not? Please share your ideas on the forum!