I don't remember the title or too many specifics, but here goes:
- Genetic engineering is ubiquitous. The system for explaining how genetic engineering works has a fixed number of "points" and something like 10 axis. Individuals' genetic code is a series of numbers along the axis (1,4,6 ... etc..), iirc the maximal number of any axis is 7 but don't hold me to that
- The transportation system is via flying car. The cars are managed by an AI that's running through the brains of two genetically engineered individuals
- Each major automated function (transportation, health, police, etc...) is managed by a family, and at the core each family holds some genetically engineered
- Countries don't exist as we know them - they no longer have physical borders
- The main plot for the book pivots around an individual that's genetically engineered to be maximally charming and maximally good for some meaning of good. Anyone who meets this individual cannot help but become a follower
- I don't think humans have gone to space at all
- Technological advances are, in many ways, held sacred and/or secret
The book stands out in my memory as one which does a really really good job of describing what life would be like if we all had access to unlimited, free, AI powered, flight enabled vehicles for transportation purposes