Yeah an important aspect of supply and demand discussions in housing discourse is that demand is liquid and can be effectively infinite because supply creation

Yeah an important aspect of supply and demand discussions in housing discourse is that demand is liquid and can be effectively infinite because supply creation is constrained by literal real world factors (ie. how many labourers are there, how fast can home designs be developed and reviewed, etc). So as I said it actually becomes more difficult to build the more you build. Vis a vis labour demand there's also competition from non-residential construction projects (eg. Amazon building a big warehouse somewhere, dam construction, bridge construction etc).