The reputation of any currency is a matter of opinion.

The value of a currency, (similar to many goods) is somewhat dependent upon buyers’ opinions; we’re uncomfortable considering the extent of subjectivity that’s factored into the value of any currency.

If those who pretend to manage governments’ currencies honestly consider the consequences of panic, they must often suffer and are awaken from their nightmares.

Panic is powerful force; a currency can power dive driven by panic. Fearing the repercussions due to legislators’ publicly considering default of U.S. debts is not a foolish consideration.

Brazil’s experience demonstrates the great extent of opinions effect upon currencies values.
It’s a remarkable story.
How Fake Money Saved Brazil : Planet Money : NPR

Respectfully, Supposn