Meet the 15-Minute City’s Cousin: The 20-Minute Suburb
https://www.planning.org/planning/2023/winter/meet-the-15-minute-citys-cousin-the-20-minute-suburb/
Increased density....
In Chyna, there is a single building with thirty thousand people in it.
The problem with this idea is that you will be expected to stay within your 15-20 minute area and sooner or later not allowed to travel outside that area except by permission. What? You want to drive to another state and visit your relatives for Christmas? Well, no you can’t because you traveled out of your area to the mountains on vacation 6 months ago. Too many carbon points. The next thing will be that you can’t even own a car, only a bicycle so no traveling outside your area, period.