This is for those who think that our economic system has remained the same, and the "trickle-down" Republicans didn't change anything -- the rich just worked harder. That's a laugh, and this chart shows the truth. Between 1947 and 1979, increases in productivity were shared throughout all income brackets -- and even benefitted by getting a better standard of living. But beginning about 1980, the Republicans altered the economic rules and tilted the economic playing field to benefit only the rich. After that, the lions share of the productivity gains went to the top 20% (and especially the top 1%). The bottom 80% just got the leftover scraps.
It is time to alter those rules again. Only this time they should be altered to make sure everyone benefits. This is not punishing the rich or class warfare. It is simple economic justice -- that rewards hard work and provides economic opportunity to everyone.