The key points are:
Five mega trends still point to risks of a more inflation prone/lower growth environment than pre-pandemic.
These are: a move away from economic rationalist policies; the reversal of globalisation; rising geopolitical tensions; climate change and decarbonisation; as well as slowing and aging populations. A productivity boost from artificial intelligence should provide some offset though.
But taken together and along with rich share market valuations this will likely constrain medium term superannuation returns, potentially to around 5% pa.