Why?, page-116

The real positive for those states is that their economies will continue bubbling along, their citizens free to do what they want except for short lockdowns. It has been known for 100 years from analysis of epidemics/pandemics that hard, quick lockdowns save lives and economies, while dithering leads to long periods of stagnation.

Sadly, SYD is in NSW, and NSW is ruled by a party that generally ignores any sort of learning in favour of homespun ideas with no evidence of effectiveness, and quite a bit of evidence of doing harm to the economy. So NSW will crash and burn over many months, dragging the national economy down with it despite what the other premiers do. This is bad news for SYD.