Altaic, Language Families
Standing
Concerns Homeland Hypothesis
Currently States Proposals place it in Manchuria or on the eastern steppe, but the question presupposes the family. Vovin, once a supporter, argued that the shared material is better explained by long contact between neighbours than by common descent, which would leave no homeland to look for.
Advocates of the Altaic hypothesis, chiefly earlier twentieth-century comparativists, proposed a homeland in Manchuria or on the eastern steppe for a family joining Turkic, Mongolic and Tungusic (and on the widest versions, Korean and Japanese). Alexander Vovin, reviewing the Etymological Dictionary of the Altaic Languages of Starostin, Dybo and Mudrak in 2005, argued as a former supporter turned critic that the shared vocabulary and morphology the dictionary assembles is better explained by centuries of contact between geographically neighbouring but genealogically unrelated languages than by descent from one common ancestor. Because a homeland search only makes sense if the family itself is real, Vovin's argument, if accepted, would leave nothing to locate: there is no ancestral population to place on a map if the shared material arrived through borrowing rather than inheritance. The dispute is not over which of several candidate regions is correct but over whether the question has a referent at all, and it remains open because the same body of shared material admits both a contact reading and an inheritance reading without a further, independent test to choose between them.
Source The End of the Altaic Controversy, Alexander Vovin