Agree that contract tracing is pointless, no system can keep up with the potential 1000+ additional close contacts per day.
But, this is beatable. Melbourne did it last year from a position of 600+ cases a day.
I don't think people outside of Melbourne realise how strict the lockdown was, what NSW has done to date isn't even close.
The Virus doesn't spread, people spread the virus. If you stop people from moving, you stop the spread. Simple.
Waiting for herd immunity isn't the answer, it will take too long.
Gladys needs to stop asking people to do the right thing, and demand that they do, and follow up with enforcement.
If NSW had done a Melbourne style lockdown at the end of June, they would be out the other side by now. Tougher restrictions now will get this done by early September, but I don't think Gladys has the nerve to do it.