@Setanta,
Okay. Let me try to explain why the question “whence languagers ?"is vacuous.
1. The primary function of language is as a facilitator of human prediction and control of what they call “the world”.
2. Prediction and control involve concepts of “causality” and “time” as
a priori concepts.
3. Both causality and time are deemed to be “psychological constructs” by most philosophers rather than ontological aspects of “an independent reality”.
4. Psychological constructs and language are inextricable .
5. Questions of “whence” presume answers in terms of causality and time.
And since “satisfactory explanations” traditionally (in lay terms) involve elements of underlying “cause”, this transcendent account will not qualify as “satisfactory” to those resistant of transcendence.