Is it true that is/are:
1 many languages in some areas
2 dancing - tribal legend
3 logic in words creation
4 language-learning problems
5 languages not a secret

Postulate:

1 At ABC stage language is created in limited area
2 language spread by learning SL, population movement SM,
travel+trade ST, military campaigns SW

Conclusion:
Model: you can look at cigarette smog to see the same pattern.
Bernoulli describes flow rights. Language flow.
The people movement is much earlier aspect.

Where is the origin? Sumers, China, Tibet, Africa perhaps I can
answered prove.
1 At first beside conclusion do you agree?

2 Do you want to know my theory?

Regards
Slawomir