Welcome to Richistan, USA
The American Dream of riches for all is turning into a nightmare of inequality. But a backlash is brewing, reports Paul Harris in New York.
America's super-rich have returned to the days of the Roaring Twenties. As the rest of the country struggles to get by, a huge bubble of multi-millionaires lives almost in a parallel world.
The reason behind the sudden wealth boom is, according to some experts, the convergence of a new technology - the internet and other computing advances - with fluid and speculative markets. It was the same in the late 19th century when the original Gilded Age of conspicuous wealth and deep poverty was spawned by railways and the industrial age.
But this is not just a world of riches gone mad that the rest of America can ignore. The growth of such a large super-rich class, coupled with a deepening poverty in many communities, is starting to tear at the fabric of society.
'When a large amount of people make a lot money very quickly it's a sign you are near the top of the market.' In a world of mega-yachts, private submarines and space hotels, that peak might be close at hand. And it's a long way down.