The Australian dollar is just one of many speculative bubbles around at the moment. It will unwind in due course.
4.75% overnight cash rate in Australia; 0% in the US. Where would you rather park money?
(The average Aussie has shit for brains when it comes to economic literacy. They know about nothing except football, brawling, glassing and passing out.....then they getting a tattoo on their head!)
Think I'm joking?