Not even near the mark Rosso:

Organised slums built on existing street scapes is urgent.

The noise-makers are more interested in battery chickens than they are in human beings being forced into similar accommodation: cramped, high rise prisons with flammable Chinese cladding plus other materials that have seen tenants/owners having to abandon them for safety reasons. Then there are the morons charging electric bikes in the lounge, risking occupants being burnt to death, or having their furniture and other ruined possessions ruined by sprinklers.

Every governments do is turning Australia into a very unpleasant country.

The long commute from outer suburbs is a tremendous waste of time and money. Near me commuters drive from rural areas, catch a train to the city then a bus to their place of employment. They could have walked the dog or tended the garden in that time, both activities reducing stress. Not to mention the pollution spewing from the various vehicles. Therein lies the catch because a bustling inner city residence may shorten the commute but not allow for pets or vegie gardens.

Therefore increasing urban density is not the answer. The population should be stabilised. I suspect Australian would be better off with 15m population rather than the current 26.8m I believe.

We humans need space, for our mental wellbeing. As population density grows, so does the crime rate per Capata and mental health issues.

The goldilocks density is around thirty thousand humans.

Above that, as the numbers grow, so does the above stats and the increased cost of dealing with both.

We need space and green recreational space, a place to walk the dog and take a constitutional. We have a vast and empty inland.

We are not short of space. Just add water and we can accommodate millions more in traditional houses like mum and dad.

Adding water requires energy and affordable energy. And you guessed it, it ain't coal, gas or renewables! Only nuclear does it and that nuclear is MSR thorium and or, MSR nuclear waste burners, burning mostly unspent fuel we are paid annual millions to take.

The cost of the latter PKWH less than a cent.

That then makes pumping treated effluent miles inland and economic proposition. To water manmade wetland that naturally, sanitise the water, aspirate it into clouds that then produce rain.

It also makes, deionisation dialysis desalination available for economically viable, broadscale agriculture/food production. (More people, more food!)

It also makes rapid rail an economic proposition as well as an inland canal.

It puts affordable housing back on the table.

Suburbs divided by significant green belts that limit the size of suburban populations to no more than thirty thousand people.

Let's plan for people rather than maximised developer profits. You need to start thinking outside the box, mate!

Did all (can do) the big idea people disappear when our grandparents died.

Increased density equates to increased cost per domicile!
Alan B.