I would like to open a discussion on my latest paper Ten reasons why Central Asia had to be the original homeland of Indo-Europeans, Gauls and Balkan peoples 04-24, which you can find on RG at : Preprint Ten reasons why Central Asia had to be the PIE original homeland
Central Asia seems to me better suited than the Pontic steppe as the original homeland of the Eurasian original language, aswell as Indo-European language, taking into account linguistics, ancient scripts, genetics, archaeology, history, religion, thespread of agriculture, the PIE vocabulary relative to the horse, the wheel and the chariot, the development of long-distancetrade along the future Silk Road. The richness of mountain and river vocabulary also supports a PIE original homeland locatedin mountains with rivers rather than in the steppes. The Pontic steppe would be only a secondary homeland of IE languages. I welcome comments from researchers.