Earlier quoted context omitted.
Are accents cultural or racial? There's plenty of cultural traits which are heritable and measurable. The difference is that there's only one human race, while there's many different cultural memeplexes. Race literally doesn't exist: The partitions that you imagine as dividing people aren't actually backed by any particular observable or experiment. Meanwhile, cultural markers do exist: We can measure what people wea…
> The partitions that you imagine as dividing people aren't actually backed by any particular observable or experiment. Meanwhile, cultural markers do exist: We can measure what people wear, speak, trade, value, etc. I'm having genuine difficulty wrapping my mind around this argument. I don't mean to inflame tempers or anything here, but would we agree that any operational definition of "race" probably needs to inclu…
You say that it's "easy" for you to determine whether somebody is "East Asian", just by looking at a photo. What are you looking for, though? Probably some sort of appearance affected by genetics. However, no East Asian can carry the complete gene pool from their region, so no East Asian can carry a set of genetic markers which is guaranteed to produce an appearance which is reliably recognizable. (This isn't specific to East Asia, of course.) So, whatever you're seeing in that photo, it's not just their genes, but also at least some of your biases, which lead you to think that your classification rate is better than it actually is.
Phrases like "cultural aspects of race" are meant to excuse bigotries beyond racism, I think. As soon as we draw a hard line between genes and memes, and agree that they have different mechanisms of action upon people, then suddenly we need to have a very hard look at anything we do which conflates genes and memes.
I'm saying that, when chatting up a person, their genetic history is extremely irrelevant. Maybe their country of origin matters (as for spies), maybe their religious beliefs matter (as when handling dietary restrictions at a dinner), maybe their accent matters (just when trying to chat!) but their genetics, and thus any notion of race, are not germane.
Keep in mind that genes are affected by pedigree collapse but memes are not. We are one race partially because we do not have enough ancestors to have more races; however, this limitation doesn't apply to cultural knowledge.