John Higgs

“word noosphere, which refers to the world of human thought. It is the end product of a hierarchy of earthly spheres. At the bottom of these is the geosphere, the physical inanimate world of rock, ocean and mineral. From the geosphere arises the biosphere, the world of all living things. The biosphere moves and evolves faster than the geosphere, and can also change it. The noosphere, in turn, arises from the biosphere. This sphere is the realm of thought, and contains all our myth, history, science, law, religion and culture. It is more fluid and changeable than the biosphere, and it can also affect it. For example, men and women in the UK are on average 4.3 inches taller than they were a hundred years ago, due to changes in our understanding of health and nutrition. This understanding resides in the noosphere, so the noosphere in this example has physically altered the biosphere.”
― John Higgs, Watling Street: Travels Through Britain and Its Ever-Present Past