Metrodomination

In theory this scales forever. Considerations are eggs-in-one-basket vulnerability to attack and existing residents never ever like this kind of thing.

But the point is that if a strong enough city to begin with institutes a UBI it will grow and increasingly pay for itself until it faces competition and levels out.

This will only scale as long as the infrastructure is able to keep up. Once you exceed the limits of the existing infrastructure, you face increased inefficiencies until the point where these negate any scaling benefits. So in addition to the costs of an UBI, there would be the additional costs of massive infrastructure investments.
 
In theory this scales forever. Considerations are eggs-in-one-basket vulnerability to attack and existing residents never ever like this kind of thing.
Cities have no sustainability on their own though. They each need vast acreage outside of cities to grow all their crops, mine their raw materials, power them, etc.

Maybe if everything becomes automated with vast vertical farms & nanobots making everything they could be sustainable.

Aesthetically speaking nature is pleasant & overcrowding is gross. I love NYC, it will always be my hometown but living in a much smaller city has many advantages.
 
Economists trying to better or convince themselves would be cool if it wasn’t for all the silly peasants believing their ramblings while still experiments with little hope to hit the mark.
 
What about environmental and societal damage? I live in a city larger than several European countries and also 1/2 as large as the rest of the country put together, in terms of population.
What city would that be, @Takhisis - Karachi? :P
 
What city would that be, @Takhisis - Karachi? :p

Doesn't take Karachi. Heck I live in Palmdale and it is larger than several European countries in terms of population...though we don't have half of the population of the US.
 
Hive of scum and villainy leaves a lot of options. Larger than several European countries isn't very limiting. But that half as large as the rest of the country...wait...so that means it has A THIRD of the population of the country. Okay, that offers a couple choices. I had been thinking half the population of the country, and that was really limiting.
 
Note that I said ‘South America’ rather than ‘Southern 'Murica’.
 
Note that I said ‘South America’ rather than ‘Southern 'Murica’.

I knew that. Besides, no city in 'Murica has anywhere near a third of the population of the country. Las Vegas has like 80% of the population of Nevada though, speaking of hives of scum and villainy.
 
Hive of scum and villainy leaves a lot of options. Larger than several European countries isn't very limiting. But that half as large as the rest of the country...wait...so that means it has A THIRD of the population of the country. Okay, that offers a couple choices. I had been thinking half the population of the country, and that was really limiting.
A wretched hive of scum and villainy in South America, as a matter of fact.
I think @Takhisis' description could realistically be the largest city of any South American nation EXCEPT Ascunsion, Georgetown, or Caribodo (sp) which are too small, or Lima or Bogota, which have less than half of their nation's population.
 
I think @Takhisis' description could realistically be the largest city of any South American nation EXCEPT Ascunsion, Georgetown, or Caribodo (sp) which are too small, or Lima or Bogota, which have less than half of their nation's population.

No city in Brazil approaches 70 million. I came up with Buenos Aires, Santiago, or Montevideo and that was about it.
 
No city in Brazil approaches 70 million. I came up with Buenos Aires, Santiago, or Montevideo and that was about it.
What about Caracas and Quito?
 
Or Santa Cruz de la Sierra?
 
What about Caracas and Quito?

Too small compared to national population in all three cases. Venezuela has like 30 million and Caracas is way short of ten million. The "half as large as the rest of the country put together" is really the only limiting factor, but it is pretty limiting.
 
My guess is the greater Buenos Aires area(Buenos Aires+it's suburbs and surrounding cities, kinda like the Greater Toronto area or the Greater New York area, technically multiple cities but essentially one great big urban sprawl)
 
My guess is the greater Buenos Aires area(Buenos Aires+it's suburbs and surrounding cities, kinda like the Greater Toronto area or the Greater New York area, technically multiple cities but essentially one great big urban sprawl)

If I were to guess I'd guess the same, but Santiago and Montevideo do fit the terms. I might not even be guessing. I might be vaguely remembering.
 
Wow. I've suddenly created my own ‘guess the city’ thread.

Anyway, my original point, a thousand years ago, is that this here city of Buenos Aires (Erika got it, btw, a long time ago it used to be my stated location) has become too big for the country it sits in.
 
Wow. I've suddenly created my own ‘guess the city’ thread.

Anyway, my original point, a thousand years ago, is that this here city of Buenos Aires (Erika got it, btw, a long time ago it used to be my stated location) has become too big for the country it sits in.

How do you conclude that? Like I said, Santiago and Montevideo are very similar population ratios to their countries. I'm way too lazy to do it, but I'd be very surprised if there aren't similar situations elsewhere. I don't know that there is any actual "too big for it's country" limit.
 
How do you conclude that? Like I said, Santiago and Montevideo are very similar population ratios to their countries. I'm way too lazy to do it, but I'd be very surprised if there aren't similar situations elsewhere. I don't know that there is any actual "too big for it's country" limit.
Singapore. The capital city IS the country... :P
 
The greater Tokyo area has 38 million people, about 3 million more than all of Canada...
https://en.wikipedia.org/wiki/Greater_Tokyo_Area
1280px-Tokyo_from_the_top_of_the_SkyTree_%28cropped%29.JPG
 
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