How about this: what if one day it were possible to have houses or buildings that grew? These buildings would be habitable, while also functioning like trees. Absorbing and creating energy from the air, including gases that are considered unhealthy and pollutants. it absorbs these and turns them into something healthy. Also the house grows by itself, horizontally and vertically if space allows, if not, only vertically, adding some capacity year after year. It builds itself. And can also be worked with to be designed for its use and space maximization.
The house is able to produce food for its inhabitants from sunlight and minerals it absorbs from the environment. There might be branches that connect it to other growing houses. It also evaporates liquid for cooling, or condenses it depending on climate and uses the liquid for something beneficial, like for washing or drinking, or store it up for the dry months. Also catches rainwater for the utilization of people on the inside. Also has the option to bring up groundwater or water from bodies of water. Animals would shelter in it as well and perform beneficial services or provide needed resources. It uses the waste byproducts of its inhabitants to aid it to grow.
The house is able to produce food for its inhabitants from sunlight and minerals it absorbs from the environment. There might be branches that connect it to other growing houses. It also evaporates liquid for cooling, or condenses it depending on climate and uses the liquid for something beneficial, like for washing or drinking, or store it up for the dry months. Also catches rainwater for the utilization of people on the inside. Also has the option to bring up groundwater or water from bodies of water. Animals would shelter in it as well and perform beneficial services or provide needed resources. It uses the waste byproducts of its inhabitants to aid it to grow.