The reality is all mid-big US cities need: - 100x more livable sqft, so it can be affordable for everyone. - 3000sqft condos that rival lux family homes in th

The reality is all mid-big US cities need: - 100x more livable sqft, so it can be affordable for everyone. - 3000sqft condos that rival lux family homes in the suburbs for space. - All building should become mixed use. Parking underground, retail on street level, offices on the first N floors of the building, and residential higher up for the views. - More vertical green space on the buildings. - More horizontal green space between the buildings. I'm also partial to building walk/bike ways above current roads such that roads are covered / "underground" i.e. don't cause noise or pedestrian deaths. Retail would be located where people walk.