This stuff u are saying about LBK R1a and INdo European not being R1a is total BS. How do u explain that from 31 Y DNa samples of Neloithic Europe 24 G2a, 4 I2a1a m26, one E1b V13, one F(i bet a decendant), and one F or one of its decendants. Also how do u explain that according to the Kurgen theory Corded ware culture brough balto Slavic languages. and two 4,600ybp Y DNa sample sfrom Corded ware both R1a1. also according to the Kurgen theory Andronovo culture in siberia are suppose to be early Indo Iranian speakers three Y DNa samples two r1a1 and one C. Also how do u explain 4,000 year old tarim mummies west china they were mixed european east asian, proto Indo iranian speakers came out of Russia so if there was a huge migration of european people in asia around that yime it would make sense they were Indo Iranians. all 7 samples had R1a1a.