Do languages "learn"?
Obviously one can view it as a "Linguistic research topic", but there is more here. The observations voiced by the South African Institute for Distance Education (SAIDE) in its Unit One: Exploring What It Means To ‘Do’ Mathematics. provides an example of how a new idea introduce itself. SAIDE's observations are not isolated, but every learning community experiences this process - even the United States in the 1960's.