Economist Stephen Roach said on CNBC that the US dollar will collapse by the end of 2021.
Roach also said the economy can expect to face a more than 50% chance of a double-dip recession.
He explained that, historically, the US has seen economic output rise briefly and fall back lower in 8 of the past 11 business cycle recoveries.
Grim data from the second-quarter this year cannot be dismissed.