The mood in Davos this year was mixed. Many of the World Economic Forum sessions felt like a tug-of-war between fear and optimism, reflecting deep uncertainty for what 2016 may bring. On one side, pessimists warned of a slowdown in China, deepening geopolitical crises and plunging commodity prices. On the other side, optimists pointed to stronger US growth and the opportunities afforded by rapid technological progress. Perhaps the ambivalent mood was best summed up by legendary investor George Soros. Asked for his outlook on global growth Soros said "I see light at the end of the tunnel," but, "I just don't know how to get there." The notes below summarises some of the main comments, ideas and fears heard at Davos this week.