about running, and running barefoot

Every so often at a pick up game I notice someone playing barefoot. Usualy the Brasilian guy. :) Unless everyone else is playing barefoot I think this is crazy. Christopher McDougall makes an argument for barefoot running, something I had never heard about. He touches on some interesting topics such as the zen of running, and running as a means of becoming a better person. Insert the word soccer instead of running and we are good to go.
:)