I'm totally serious when I say that this video is more objective, informative and accurate than any peer-reviewed paper published to date when it comes to the genetic origins of the Khvalynsk people. However, that's not to say it's perfect. I think it misses some important details. See here... The Caucasus is a semipermeable barrier to gene flow Dear David, Nick, Iosif...let's set the record| Eurogenes Blog
I've now had the chance to read and digest the following two papers in Science about the origin of Indo-European languages: Language trees with sampled ancestors support a hybrid model for the origin of Indo-European languages, Heggarty et al. The genetic history of the Southern Arc: A bridge between West Asia and Europe, Lazaridis, Alpaslan-Roodenberg et al. The Heggarty et al. paper is pure| Eurogenes Blog