[Ericson2314]

> quiet streets for kids to ride bikes

Getting rid of cars would solve that problem regardless of density.

> large public parks

Denser everything else frees up more space for parks. (I sometimes think of a "fractal density" which is high on average but has tons of variation to keep things beautiful.)

[hcurtiss]

I am not convinced there will ever be a universe where we are "getting rid of cars." At best, I think, we decrease emissions associated with them.

[runarberg]

I wonder if people said something similar about horses back in the 1850s New York: “At best we breed horses with that don’t leave as much manure on the streets”, DVDs in the early 2000s “at best we make better recycling facilities and our landfills won’t be full of plastic” or oil lamps in the 1840s “at best we will be able to find a plentiful hunting grounds where we’ll never run out of whale oil”.

[Ericson2314]

> At best, I think, we decrease emissions associated with them.

You are saying at best make them less bad, but used just as often? Forget other universe, what about the other countries that successfully do what I speak of?