The idea that everything can be bought and sold, for example your feudal estate, is quite new. I think Varoufakis is a somewhat of a disciple of Karl Polanyi on

The idea that everything can be bought and sold, for example your feudal estate, is quite new. I think Varoufakis is a somewhat of a disciple of Karl Polanyi on these matters. But I agree that the notion of "a new type of common ownership that works in sync with new technologies" needs much more spelling out.