Tyler Lee (apparently a Chinese male) writes:
I think it is only applicable to about 10-1 The ones that look like Southern Chinese are most likely to be mixed descendants of earlier Chinese immigrants from centuries ago. Another supporting fact is that although they have been a democratic nation for longer than nearly all Asian countries, Philippines is still dirt poor, and Filipino IQ, as a whole nation, is no where near that of Southern Chinese. However, I do see similarity with Fujianese/ Cantonese and Vietnamese, based on the look, culture and relatively high academic/professional performance among these in the U.S.
Filipinos are very close to Southern Chinese. However, Thais, Lao and Vietnamese are also very close to Southern Chinese. As far as why Thais, Lao, and Filipinos do not particularly look like Southern Chinese, that is because they are heavily admixed with native SE Asian or native Filipino. In Filipinos, the male line is Ami from Taiwan, but the female line is ancient island SE Asian related to proto-Tai from 10-20,000 YBP. This was basically an Australoid or Melanesian type grouping. The male line via Taiwan aborigine is not related to more recent infusions of Chinese genes in Filipinos over the past ~1000 years. It is well known that Vietnamese were predominantly Australoid (Melanesian) until ~2,000 YBP. At that time, there was a huge infusion of genes from Southern China (Cantonese region) and they transitioned from Australoid to Mongoloid (SE Asian type). They had already been transitioning this way for ~2,000 years, but the mass infusion of Chinese genes helped them along. With the Thai and Lao, they are mostly Southern Chinese. A huge infusion of Southern Chinese genes poured in from Yunnan about 900 years ago and admixed with native SE Asian (probably Melanesian/Australoid type). This admixture created the modern Thai or Lao people. Closely related groups can have dramatically different IQ’s. We can see this by looking at SE Asian IQ’s.
IQ Genetic distance* Group Southern Chinese 105 - Northern Chinese 105 Very far Vietnamese 99.5 Very close Thai 98.5 Close Lao 89 Close Filipinos 86 Close *Genetic distance compared to Southern Chinese. 1. Thai, Lao and Filipinos are about equidistant from Southern Chinese