Everyone wants a huge house with lots of land far from neighbors.
But then they want the state of the art hospital to be close. They want to be able yo reach the closest airport in max 1 hour. They want their kids to play with other kids, ideally without being chauffeured around endlessly, etc, etc.
What I've discovered is that humanity has mastered the ancestral art of "having the cake and eating it, too", also called delusion and/or hypocrisy :-)
We're humans. We do that stuff.
And we're natural creatures like the rest of them are.
Some human activities can have an outsized impact, but the overwhelming majority of those activities remain necessary regardless of where people live, and some will have an greater impact with widespread urbanity since some things like energy/food/water can be relatively cleanly decentralized in rural settings, at least partially, but require complete centralization in urban settings.
It emphasizes neither!
What you've described is a mass grave.
Quite literally so. If you killed all living humans (8.3billion), the mass-grave you'd have to dig to put them all in one place isn't quite large indeed!
Plus, humans on earth are affected by gravity, so any arrangement of them cubic squares instead of square miles is highly unintuitive, unusual and unnatural to begin with.
This doesn't say anything about habitable area (measured in km^2, not in km^3) of the planet, or the number of people (that you've conveniently reduced by taking a square root of - twice! by packing them into a tightly packed cube)
For example, if you took 8 billion people and made them hold hands with each other tightly packed (0.5m per person) it would wrap the circumference of earth 100 times.
Now this actually says something about size of the earth!
The land that people live on, whether it's in a city, a suburb, or in a rural manner is a rounding error compared to those demands.
That's the actual tragedy. Forests contain a lot more like per cubic km than pastures do.
Where's the food going to come from?
It's common enough, here at least, to have a small family cropping 13,000 old school acres - tilling, seeding, waiting, harvesting, etc with big machines and Ag-bots.
You're going to need more farms and more farmers, and no-one can afford to be shipping food halfway round the planet.
I'm just here to point out farming and livestock at suprisng to many scales can be operated by fewer people than you might expect.
as for: > no-one can afford to be shipping food halfway round the planet.
what does the Atlas of Economic Complexity type datasets currently say about food volume tonnages and trip lengths? I know that our local farmers co-op
handles handysize to post-Panamax vessel shipments from Australia, United States, Canada, South America and Europe to key grain markets in Asia, Europe, Central America and the Middle East.
and there are other grain basins about the globe.
The challenges for grain shipping going forward likely fall about getting sufficient production of non fossil origin methanol fuel variations for shipping engines.
That and making sure the front doesn't fall off.
Urbanisation ratios have increased, farm worker percentages decreased, average land area holdings increased so stores, schools, etc. are closing.
As time passes now, more an more old farm hoses are vacant island in an ocean of larger consolidated workings.
> all the things that you hoped urbanizing would get rid of- roads and rural communities.
I spoke about the actual real in this moment trend that is already happening; increased urbanisation, I said nothing about wanting to see the end of roads or rural communities - although I'm a big fan of seeing less human impact on larger areas of managed land - land that includes agriculture, mining, native reserves, cropped treelands, etc.
https://www.wpr.org/news/locally-grown-fruits-veggies-expens...
We do not have the capacity to ship food halfway round the world because picky eaters don't like the idea of eating meat and potatoes.
Depends on the food, if you're clearing land for a new crop (which many countries have done historically and still do today) then it's not sustainable. And if the native crops are simply not as good nutritionally as the new crop then it's better to eat the new crop even at the ecological cost of the native one, e.g. potatoes vs barley in Ireland.
I'm not sure what you're referring to in your second sentence, not sure why picky eaters wouldn't like meat and potatoes or what that has to do with shipping in general, not even the fact that we do indeed have the capacity and will to ship food halfway around the world already today.
Musk wants to be a founding father. And just as the OG founding fathers, his problem isn't necessarily with the centralization part in general, but with the centralizing being done by others. There's a reason the original American voters were all white land owning men (and in some cases, slave owning men!).