The biggest failure point of economic productivity in the second half of 21st century will be the production of new people - i.e. babies. Cities are the biggest

The biggest failure point of economic productivity in the second half of 21st century will be the production of new people - i.e. babies. Cities are the biggest contributors to this, where people have extremely low fertility rates. Many young families move out of the city, because they find it to be inhospitable (too expensive to have all the resources one needs). The United States is less aware of this issue due to high rates of migration, and higher birthrates in certain subpopulations. The nuclear family is a brand new social experiment of the 20th century, and one of the primary causes in the decline of the production of people. Without traditional support networks, women have to choose between 24/7 baby-care and not having children. Daycare is extremely expensive, and in fact not the ideal environment for a 3-month-old. The traditional notions of a trust-based larger family unit (siblings, grandparents, aunts) and community-unit are non-existent in the modern urban environment. Even without the issue of children, most people struggle for connection and meaning in their lives more-so than before. They enjoy fewer intimate relationships, and spend less time with people they love or trust. So if you are designing a new city, design it around fostering genuine communities, and is inclusive to all ages and educational backgrounds. My ideal city would be composed of mini-villages, each mini-village centered around communities of a few dozen families, sharing a courtyard "public" to the community+associates. It would be an environment where I wouldn't have a bitcoin-based smart contract to 'enforce' something that my neighbor would do anyways. In general, the city would aim to minimize total commute / on-the-road time for as many people as possible. It would be a city where work is co-located with child-care for young mothers, who can take 30 minute breaks, walk-over, and breast-feed. This means completely different things for zoning. This would mean work would also not happen in a context completely isolated from rest of life: Perhaps the "work day" would last 10 hours, but with 3 hours of interruption for family, food-preparation, etc. This doesn't mean people would "work at home", or the "workplace would be full of kids", there are innovative ways to combine the two -- which was the natural state of things only a century ago. Perhaps each person would make less money, but we'd need to spend less as well, giving each other the things one is now forced to buy in a city. It would be an environment where one could have 4-day workweek, perhaps taking two afternoons off, so men would be more present in their families.