They mention mass timber, but lots of buildings in the US already use wood framing, and 5+1 apartment blocks (with the top 5 floors using wood framing) are going up everywhere.
>If the primary load-bearing structure is made of either solid or engineered wood, it’s a mass-timber building. A building that uses mass timber as an accent and not a primary structural element isn’t mass timber.
[0] https://www.constructiondive.com/news/mass-timber-101-unders...
It seems doubtful that "future cities" will be primarily skyscrapers when quite high densities can be achieved with buildings that don't go above five stories or so and are cheaper to build.
Very common in new apartment buildings in Europe and becoming more so. They're built (more like assembled) faster than concrete or metal
https://www.architectmagazine.com/technology/architectural-d...