The cost of energy keeps going up every year. This means the cost of producing and transporting goods keeps increasing. At some point there's going to be a tipping point where modern building materials are not affordable. I don't know when this will happen, but it could happen at any time since fossil fuels are rapidly being depleted. Building supply centers of the future could look like this, selling minimally processed natural building materials such as wood poles, bamboo, woven bamboo mat, low fired brick, thatch panels and other similar materials.
I had wondered about this.
mopme2008 10 months ago