But with the U.S. stock market at an all-time high, his cautionary words seem to have hardly been heeded.

In a recent conversation with China Money Network in Singapore, the chairman of Rogers Holdings and co-founder of the Quantum Fund, again sounded the alarm in his usual tireless manner"When it ends, we will all pay a terrible price," says Rogers.

It is true that Rogers warned about the U.S. debt problem back in 2003. At that time, he also foresaw the coming of the U.S. housing collapse. He was at least four years early.

But do not read his latest warning as a prediction. As he often says, he doesn't know what's coming in the future.