The noosphere is a layer of human thought that sits near the biosphere and atmosphere, it has been reffered to as the sphere of thought by Vladimir Vernadsky.
The noosphere discusses mass behavior of everything that exists. It is how we can explain how people, animals, or plants automatically know how to act or behave. It is responsible for anything that ever was or is.
In ants, a noosphere specific to this group makes the colony act like a "superorganism". They act collectively without any direct communication. It isn't planned behavior either. They can, in synchronization, act as one body doing spontaneous activities or during unforseen events.
Noospheres have even been observed in politics and have been coined noocracy.
Some have even thought that the noosphere is a beneficial evolutionary trait. (Ken Wilber)
Emily Durkheim identified society as the sole source of human logical thought. This can be identified as a way to put the noosphere in the context of physical reality.
This is strange to think of since ideas cannot be physically measured or experienced. You can hear of an idea through the use of words, encoded symbols, but it is hard to really experience an idea the way that it was initially envisioned.
This brings the issue of how people come to a mutual understanding based on the use of symbols. How do you know that what you think is an apple, is what I think an apple is. This can be explained by the noosphere. It is how we extinctly know what people are talking about.
This idea is also related to collective consciousness. It can be described as herd behavior. This is different from the synchronization of the bees, since no on is follow another, it is more that they are all simultaneously doing the same action, acting as individuals within the same group.
Everyone seems to have their own ideas on what a noosphere is, however they all seem to collectively understand what the other people are saying, but add on more ideas/aspects.
If this idea were correct, then every idea/ discovery that has ever been thought of has been heard/ thought of is not really original.