The richest 1% own nearly half of all global wealth.
Let's get our heads around that. Only a tiny fraction of the roughly 7 billion people in the world accounts for 46% of the estimated $241 trillion in money, property and other material resources available.
The richest 10%, meanwhile, can claim 86% of global wealth, leaving 90% of the world's population to divvy up whatever's left.
These extraordinary figures were included in a report this week from Credit Suisse Research Institute. It found that the gravy train is chugging along, but with relatively few passengers.
Former Labor Secretary Robert Reich has been sounding the alarm over wealth inequality for years. He's at the center of a recent documentary, "Inequality for All," which explains the problem in frightening detail.
"When so much of the purchasing power, so much of the economic gain, goes to the very top," Reich told me, "there's simply not enough purchasing power in the rest of the economy."
That has profound implications. In the United States, consumer spending accounts for about 70% of all economic activity. If most consumers are getting by with less, the inevitable outcome is that they'll have fewer dollars to pump into the economy.
Reich noted that wealth inequality was greatest in this country in 1928 and 2007. In both years, the top 1% represented about a quarter of total income.
And shortly thereafter, in 1929 and again in 2008, the U.S. economy tanked, dragging down the rest of the world with it.
Other nations, Reich said, have taken steps to address wealth inequality. They've invested more in infrastructure and education in an effort to create more economic opportunities throughout the social spectrum.
The United States, for its part, has been content to let the problem grow.
"We are far more unequal than any other advanced society in the world, and we are surging toward greater and greater inequality," Reich said.
The Credit Suisse report bears that out. Average adult wealth in Switzerland is $513,000, the world's highest, followed by Australia ($403,000), Norway ($380,000) and Luxembourg ($315,000).
Average adult wealth in the United States is $301,000, but that number is heavily skewed by the fact that this country has, by far, the greatest number of "ultra-high net worth" individuals, with personal assets exceeding $50 million.
According to the report, the United States accounts for 46% of all such super-wealthy people worldwide. Coming in a distant second is China, which boasts 6% of the world's super rich.
Being successful, obviously, isn't a bad thing. There's much to be said for the whole land-of-opportunity idea, in which people are rewarded for a job well done.
But that's not what's actually happening. The rich are gaming the system so they can accumulate a greater share of wealth to the detriment of others.
They do this by using their financial (and hence political) clout to reduce their share of taxes, thus placing a greater burden on the rest of society to fund government programs and the public sector's investment in economic growth.
The top marginal tax rate for much of the 1920s was 25%. It was 35% in 2007. At both times, wealth inequality was at record levels.
Compare that with the 1950s when, under then-President Dwight Eisenhower, a Republican, the top marginal tax rate was 91%. Were the upper classes barely scraping by with such an onerous tax load?