[davidw]

Whether people throw their shit on the ground is more of a cultural thing than an 'urban design' thing.

In terms of sustainability, it's not that hard: denser, less carbon-intensive living, where people can walk, bike and take transit, beats sprawl hands down. People have been making cities like that for thousands of years. What changed is our 'suburban experiment':

https://www.strongtowns.org/journal/2015/1/7/americas-suburb...

[throwaway3451]

Agreed littering is cultural, but if e.g. 1/1000 people do it then it's also very much a function of density. If we're going to increase density we need to be even more proactive about sanitation, trash, noise, and "misbehavior" or edge cases in general (crime, mental health, etc.).

Strongly agreed on alternatives to driving, and I'd throw in "truly accepting remote work" (not just being "remote friendly but you should take a global trip with us every quarter"). We have a global telecommunications network, we ought to use it.

Supply chains, local food, and not overstraining our watersheds are also all key. We'll have to face the reality that some cities are just built in a way/place that they don't belong, at the size they are at least.