Inexorable? Various cities have managed to prevent this phenomenon. Zoning is the root of the issue, but now everyone views their house as their primary investment and they'll fight to protect the eye-popping growth they've seen in their property value.
More people want to live next to more people.
Neither are present in many rural areas and the amount of investment needed especially for infra to catch up is enormous - too much for governments facing a tax competition to rock bottom.
I lived in Provo (college town, 50 miles south of Salt Lake City) a few years ago. Had Google Fiber, lots of jobs, and houses for <$200k.
People want to live next to other people.
The fiftieth largest high school stadium in Texas seats more than 2x that number. [2]
Yellowstone National Park staffs that many people during the summer. [3]
So, yeah, that's small.
I understand why actually rural communities are popular for only a few people. But there's a lot that available between 10 people/sqmi farmland and NY/LA/DC/SF/Chicago metro area. Yet, big cities are still exploding. Because people like them.
[1] https://suburbanstats.org/population/washington/how-many-peo...
[2] https://www.worldatlas.com/articles/the-largest-high-school-...
the amount of investment needed especially for infra to catch up is enormous
Only if you see hardwire (e.g.fiber) as necessary. 4+G provides sufficient speeds now.Much of the third world skipped ISDN/DSL/etc and went straight to mobile for data.
Any 4G/5G tower worth its salt requires digging for a fiber uplink, and that "long haul" is the expensive thing. The difference between linking up a cell tower and a village is not much.
In addition, I often see people propagate the myth that eating healthy costs more, which couldn't be further from the truth.
The reality is that meal preparation and home cooked meals from basic ingredients are some of the healthiest things people can eat, assuming they understand basic concepts such as macro-nutrients and how they relate to body composition.