Convergence and secondary entropy in a macrodiachronic perspective

The theory of secondary convergence and entropy has had interesting results in the comparative linguistics Semitic languages, as studies Lutz Edzard who analyzed between various languages once they were already distinguished from one another separate branches deriving Proto-Semitic. However, Edzard’s contribution to issue regards only same family, a relatively small language family integrated loose macro-family Chamito-Semitic (Afroasiatic) languages. What should be expected now is application similar methodology that could take into account dynamic mutual belonging families looser than tighter ones.My assumption at late stages Proto-Indo-European (PIE) (around 2500 BC), when PIE been divided dialects, dynamics also have play different origin, not linguistic family. question whether contact subdivisions with allogenic perceived perspective: centrifuge process respect PIE, but centripetal process, by way which initially non-IE eventually Indo-Europeanized.