The World Economic Forum WEF has long been a lightning rod of global discussion on economic, social and political trends. This years gathering in Davos, Switzerland, was no exception.Blockchain technology emerged center stage last week as a key discussion theme, receiving praise from attendees for its cutting-edge potential. Bitcoin and the future of cryptocurrencies, too, were highly discussed topics at the forum, not just casually but also in an official session and a few panel discussions.