QUOTE(Karakhan @ May 31 2005, 02:55 PM) [snapback]4725677[/snapback]
Unlikely, the original Kets were not Mongoloid and inhabitted a very small area in Siberia. They only "recently" obtained Mongoloid features due to intermixing with Nenets (aka Samoyeds) and Turkic people, but by the time this happened, Chinese dynasties already existed.
Furthermore, alot of linguistic connections are just speculative and nothing more, there were "strong" cases that Ainu and Basque, Japanese and Hebrew, etc could've been related because they had a number of similar sounding words, but ultimately it was inconclusive and mere coincidence.
I heard about this too, but I would also take this with a grain of salt. A recent Japanese geneology test produced some odd results, such as Uighurs being closely related to the Japanese in comparison to Mongols or Koreans who scored lower.
You made your point that mere similar sounding words do not mean that those people using those words are related. The similarly sounding words could be either coincidence or loanded words. However, if you consider different aspects of the languages, such as vocabulary, grammar, sounds, expressive ways, then it becomes clear that some languages are definitely related to each others.
Seen from these factors, it becomes clear that Tibetan, Qiangic, and Burmese languages have nothing to do with Chinese, except for some mutually borrowed words.
Tibetan, Qiangic, Burmese languages are closely related to each other where as they have totally different gramatical structures from that of Chinese, Thai and Hmong, and Vietnamese.
e.g.
Tibet: Kerang nga-la deb dih nangro-nang!
English: You me to (I-to) book this give
Turkic: Sen maga bu ketab (ni) bering!
You me to this book (acc.case) give
Chinese: (Ni) ba zheben shu gei wo.
You (acc. case) this book give me
You can see the similarities (Tibet-Turkic) and differences between these languages (Tibet-Chinese).
In other respects (gramar etc), Tibetan, Qiangic and Burmese are similar and closer to Altaic (Turkic, Mongol, Korean, Japanese) languages, except that the former group contain a lot of monosyllabic words which is not common to the second group.
Regarding the third, Thai, Miao, Chinese, Lao and Vietnamese, they are all related in the sense that 1) they are all TONAL languages (4-9 tones), have 2) monosyllabic vocabulary, 3) have siliar word orders, 4) and other similar characteristics.
Your comparison that we use English is not a good one, because in addition to English, we all use different. original languages as well.