Earlier quoted context omitted.
> build taller As someone who lives in an area with plenty of high-density residential buildings, I can attest that this is a perfect recipe for creating congested cities with such intense light and noise pollution.
It can certainly cause light issues, but I'm not sure why it would cause _congestion_?
If your reply is that the vehicles are not needed because everyone can just walk: it takes more energy and more carbon emissions to walk a mile than it takes to drive a vehicle a mile -- and that's before we get to transporting things other than people. (Growing food is very energy intensive; walking burns food.)