Alexlee, I think we agree except for technical details.
We agree the surface of the earth is finite, but that's an upper bound we're not anywhere near yet.
Australia is very empty, we have ~100 acres per person.
You and I agree that not all of it is livable. Yes, the Yanks built Las Vegas in the desert, but Vegas is right next to the Hoover dam (supply of water + energy). Maybe with hot rocks and the artesian basin we could grow a desert city. I don't know. We don't have one now.
There is no shortage of land. There IS a shortage of land that has infrastructure, near where people want to live, near people's families, near jobs, within an acceptable commute, etc.
I guess the best way to describe it as "land in which an average Australian would find acceptable to live"
With a sufficient investment of infrastructure, we could create new land which is livable. I think we should actually build some new cities, perhaps up north where there is lots of water. We could start from scratch and build excellent public transport, renewable energy, etc etc.
I don't think we will get anywhere near the size of the USA, because of our physical limitations of soils and water. There is probably space for another couple of >1M cities up north.
But there's no money for that, and no vision. Infrastructure is running down because we'd rather have money now than plan for the future.
You're only looking at the short term, though. I have a 30 year horizon.
I fully expect to buy property in the future, but when I see value. I don't now.
want to pay taxes so that they can build trains for future generations?
If I had been provided with excellent infrastructure I would have accepted it as a fair deal to take from the previous generation and pass on to the next. Unfortunately it seems that the current demographic bulge with the power has decided to take a lot when they were young, then make it a user pays system for those that follow...
But we don't want to turn this into a babyboomer bashing thread....
The critical thing is: much of what makes a piece of land livable is extrinsic to that particular piece of land. It is the distance to work, services, infrastructure, transport etc that gives it it's value. With infinite infrastructure and infinitely fast travel times land would not be scarce until we hit that far-off time when everyone is standing shoulder to shoulder and we can't all walk on ground level at the same time.
But those 2 things don't exist. So livable land IS scarce.