The ideosphere, much like the noosphere, is the realm of memetic evolution, just like the biosphere is the realm of biological evolution. It is the "place" where thoughts, theories and ideas is thought to be created, evaluated and evolved.
The ideosphere is not considered to be a physical place by most people. It is instead "inside the minds" of all the humans in the world. It is also, sometimes, believed that the internet, books and other media could be considered to be part of the ideosphere. Alas, as such media are not aware, it cannot process the thoughts it contains.
