Via:

I strongly recommend watching his special talk by Immanuel Wallerstein in full.

“Analyzing the chaotic and unpredictable historical conjecture in which we find ourselves, Dr. Wallerstein highlights the instability of a world-system far from equilibrium, where our actions may very well be the factor that decides whether the planet succumbs to the spirit of Davos, home of the World Economic Forum and its vision of capitalism without democracy, or, on the contrary, accedes to the spirit of Porto Alegre, home of the World Social Forum and a vision of a global, participatory, and anticapitalist civil society.”