Traditionally, AUD rises in periods of positive global economic growth. However, since the GFC, there has been a shortage of USD in world trade, aka the "Milkshake Theory". Refer to the $DXY long term chart below. The question is, are we entering a new era, where USD currency debasement, erosion of US Fed independence, deglobalisation, transition to a multi-polar world, will see the demise in USD currency hegemony? Likely - When that bottom red trend line is breached, that will mark the end of the milkshake regime. Mind you, a weak USD is bullish for the NASDAQ 100, where 40-50% of earnings are non-USD denominated. 
I’m keen to hear how others think about currency movements, particularly the AUD relative to the USD, and how much it influences your allocation decisions.
My current thesis is that the AUD is likely to strengthen against the USD over the next year or so, and that this could be a meaningful headwind for Australian investors holding unhedged US assets. On that basis, I’m considering whether it makes sense to gradually reduce my USD index exposure now and reallocate more towards AUD index assets.
Do you adjust positioning based on currency cycles? Or is the view that trying to anticipate forex moves is a distraction from long-term compounding, and best ignored?
I appreciate that timing currencies is notoriously difficult, but at the same time the AUD/USD cycle can have a material impact on realised returns over multi-year periods. Curious how others think about this trade-off and whether currency views ever influence asset allocation decisions.
I could be overthinking it. I know there's not the same businesses in Australia that there are in the US and the business performance could also be skewed considerably.
Not looking for short-term trading ideas, more interested in how people frame this from a long-term, philosophy perspective.
Keen to hear others’ views and experiences.