“speaking of the general population, “Piggs” and retirement planning ever consider the parallels to classic story of the three little pigs?”
Although the core causes go far deeper than this story illustrates, I can see the parallels with regard to how, among the unprepared, the wealth gap will take more and more people down with it as it grows exponentially in the coming decades.
In addition, the stats indicate that even many in the top 20% have not planned well for retirement, so it seems likely that the wealth gap may widen as more and more people across all generations enter their retirement years.