I dreamed the future city. it was a giant pyramid where your yard was your neighbor's roof. and you took giant escalators up the inside of the building. And the inside was a giant atrium.
As long as land is cheaper than construction this is a pipe dream.
If you eliminate transportation costs and factor in lower taxes and energy costs, it may be a wash.
More and more people want to live in cities where both land and construction is expensive.
YC is trying to build new cities, and I was hoping to catch their eye here.