That guy has his own axe to grind, namely that IE was a branch of Afroasiatic - which is hardly compatible with the Indo-Uralic hypothesis which he thus had to find an argument against. To me, PIE looks more like a sister of Proto-Uralic than like an Afroasiatic language, but things may be deceptive. My guess at the Mitian Urheimat is in southern Siberia, probably somewhere near Lake Baykal, at the end of the last ice age.Travis B. wrote: ↑Tue Jan 06, 2026 4:19 pm Hmm, I'm reading stuff like this that implies that most of the similarities between PIE and Proto-Uralic are likely either borrowing or chance, and that the Urheimat of PU is likely as far east as Yakutia, contrary to past views that set it in the Urals. As for Mitian, I'm seeing it suggested that possibly Mitian is a real thing but does not include IE at all.
As for Indo-Uralic, the findings of this paper are usually interpreted as supporting a Caucasian origin of "Indo-Anatolian", but the genes of course say nothing about the languages the people spoke, even if they can be used to trace prehistoric migrations. My interpretation is that the Caucasian people ancestral to the Yamnaya spoke Pre-Proto-NWC, those that moved into Anatolia spoke a language that evolved into Hattic (a language about which not much is known, but there apparently is evidence of a relationship to NWC), and PIE is a language of the East European ancestors of the Yamnaya related to Uralic but heavily altered by a NWC-related substratum. (And Anatolian evolved from a conservative peripheral dialect of PIE on the western end of the Yamnaya horizon, and moved into Anatolia from the northwest shortly after 3000 BC.) This model (which C. C. Uhlenbeck already proposed in 1935, on purely linguistic grounds of course) IMHO explains things best.
Yes, PU seems to be younger than PIE, perhaps about 2500 BC or so. The (seeming) IE loanwords in it indeed show some traits that point at a PIE dialect ancestral to Indo-Iranian.Skookum wrote: ↑Wed Jan 07, 2026 1:57 am Not an expert by any means but I‘ve taken an interest in Uralic linguistics recently and it seems like people are increasingly skeptical of even PIE > PU loans, at least on the Uralicist side. I think the consensus is that PU is a considerably younger language than PIE and therefore the timelines don‘t match up, leading to the reinterpretation of most early loans as being from (Proto-)Indo-Iranian.
So far, it is little but speculation, I think. Genetics allow to trace ancient migrations, but the genes, as I said above, say nothing about the languages those people spoke. Which is shown by how the Lazaridis et al. paper I linked to above can be interpreted in (at least) two utterly different ways with regards to the origin of the PIE language. And even if Uralic came from the east, why can't IE come from the east too, as part of the very same migration? IE and Uralic would then have separated around the time Indo-Uralic entered Europe. (In fact, this is precisely what I think on this matter.)