For all the alarm about the rise of the robots, or software eating the world or the peril of climate change, one of the most pressing economic dangers of the future is getting short shrift: Landlords are eating the world. There is growing concern that wealth inequality has skyrocketed, and that capital income accounts for a growing share of the economic pie.
http://www.bloombergview.com/articles/2015-09-09/the-threat-coming-by-land