I develop the idea that science works because scientists form communities defined by a set of ethical principles which, even if imperfectly applied, tend to lead to progress in our understanding of nature. While these communities have long been international, the combination of the internet with cheap airfare and easy migration of educated people makes scientists into \'global souls\', in Pico Iyer\'s phrase. This opens up new opportunities and also new challenges for the thriving of scientific communities.


Talk Number PIRSA:08090035
Speaker Profile Lee Smolin