Well I don't have much nous as far as economics go, but these sort of headlines trouble me:

Australian Dollar: How Low Will It Go?

"The Australian dollar is back on a downward spiral, reversing solid gains made overnight, as markets continue to react to recent statements from US Federal Reserve Chairman Ben Bernanke.

The currency rose as high 97.50 US cents early on Friday, up sharply from 96.23 US cents on Thursday afternoon.

But by 1200 AEST the Australian dollar had retreated back to 96.65 US cents.

http://au.finance.yahoo.com/news/australian-dollar--how-low-will-it-go--063213512.html

"Investments banks continue to be negative on the Aussie, with Credit Suisse's global strategists telling clients the currency could fall to US85c in 12 months because "this time it's structural".

What do they mean by structural?