We dug this up from last year. One sees how little things change: Thousands of people will gather next week in Davos. Their combined wealth will reach several hundred billion dollars, perhaps even close to a trillion. Never in world history will be the amount of wealth per square foot so high. And this year, for the sixth or seventh consecutive time, what would be one of the principal topics addressed by these captains of industry, billionaires, employers of thousands of people across the four corners of the globe: inequality.