Facebook has become a fascinating barometer of social preference over the years. This is true on both a micro-scale (say, amongst my own friends), and on a larger scale (examining the collective behavior of Facebook users in general).
Has the World Economic Forum been reading "The Hunger Games?" While the recent Global Risks Report doesn't predict a world where children fight to the death for sport, it does warn that the "seeds of dystopia" are being sown. It's definitely not a report to be read alone or before bedtime.