The Reserve Bank of Australia have popped up a helpful explainer on exchange rates
As part of its Q4 'Bulletin' it has a piece on:
In there you will find plenty of useful stuff including a section on intervention in the Australian dollar:
- the Bank can still intervene in the foreign exchange market if it becomes disorderly or dysfunctional
As you can see, its been a while:
But, hey, never hurts to be prepared!