After living several months with an exchange student, it occurs to me that to really LIVE in another culture, you need to cut off your old one to a large degree. No skype, facebook or e-mail. Perhaps an occasional package or letter, but no "constant contact." I think the act that requires the most bravery for an exchange student is to live with strangers. And you never get to understand another person's point of view if you can hang on to your home country values and views.
Tomorrow -- how can China innovate without freedom?