I work in a related area of historical-comparative linguistics and I am familiar with much of the literature cited in this Wikipedia article. I would say that t

I work in a related area of historical-comparative linguistics and I am familiar with much of the literature cited in this Wikipedia article. I would say that that at the Proto-Indo-European level, this article represents pretty mainstream views that have been common in the literature for decades. Where some could quibble with the article is its mention of a lot of much later phenomena in various societies that don’t necessarily go back to the early Indo-European tradition.