The Original Green is the sustainability our ancestors knew by heart. Originally (before the Thermostat Age) they had no choice but to build green, otherwise people would not survive very long. The Original Green aggregates and distributes the wisdom of sustainability through the operating system of living traditions, producing sustainable places in which it is meaningful to build sustainable buildings. Original Green sustainability is common-sense and plain-spoken, meaning "keeping things going in a healthy way long into an uncertain future." Sustainable places should be nourishable because if you cannot eat there, you cannot live there. They should be accessible because we need many ways to get around, especially walking and biking because those methods do not require fuel. They should be serviceable because we need to be able to get the basic services of life within walking distance. We also should be able to make a living where we are living if we choose to. They should be securable against rough spots in the uncertain future because if there is too much fear, the people will leave. Sustainable buildings should be lovable because if they cannot be loved, they will not last. They should be durable because if they cannot endure, they are not sustainable. The should be flexible because if they endure, they will need to be used for many uses over the centuries. They should be frugal because energy and resource hogs cannot be sustained in a healthy way long into an uncertain future.