system
Given the following post, respond as if you're commenting on Reddit:
human
CMV: It is entirely possible for some races to have lower IQ on average, genetically.

First of all, I'd have to answer the obvious question - why does almost the entirety of modern science disagree? Well, it is beneficial to society that we all think everyone is born equal. You all know what does stupid, baseless racism look like. Now imagine how violent and intense would substantiated, science-supported racism be. So it would actually be a smart move from the governments and scientific institutions to silence and discredit any research that says otherwise, if it were the truth.

Now, races differ genetically. Whites people have white skin, black people have for example, higher center of gravity. Asians are shorter. Basically every ethnic group has discernible physical characteristics that allow a skilled professional to differentiate between them. 

The widely accepted sentiment that races are very physically different, but exactly the same mentally, just doesn't make much sense. Evolutionally, higher mental acuity is an investment. Just like being taller, having bigger lung capacity, or stronger skeletal muscles. It uses up more energy and is not always the priority. So, for example, it is not unreasonable for some populations to end up less smart, but stronger - as a reaction to their environment.

My second point is:
Selective breeding in humans. Average IQ of a human populace CAN change over time. And it's not only because of the socioeconomic circumstances - having higher IQ can mean greater success in life and better opportunities for passing your genes, resulting in the population getting smarter. OR, as predicted in Idiocracy, being more intelligent might be a detriment to having children, making the populace dumber. But overall, the average IQ of a populace may vary over time.

So, it is entirely possible for two ethnic groups to have different average IQs. EVEN if you take all the underlying genetic predispositions from the equation. And when you put both these groups into one society, it WILL be possible to make assumptions, such as: "This person looks to be of Ethnicity A. Therefore, it is probable that he is dumber than this other person, who is of Ethnicity B."

To summarize, I am not saying that any race in the world definitely is smarter or dumber than other races. But it IS a possibility - and if it is actually true, we will never officially know. Because admitting it would destabilize the society.

EDIT: Many people are saying that the concept of "race" is a social construct and isn't really relevant anymore. Sure. You can still compare people with skin color in the range of (#1a0e0b - #995341) to people with skin color in some other range. Skin color is the result of some genes, and not the cause of potential mental advantage/disadvantage. But it can correlate with IQ, so it's not unreasonable to do research based on skin color ranges.
gpt
Why is this a useful or interesting question?

It's possible tall people have higher IQ than short people.  It's possible people named "Eleanor" have higher IQ than people named "Walter."  It's possible people with lots of nose hairs have higher IQ than people with fewer nose hairs.

There's a near-infinite number of ways to divide up the population and then compare IQs (and, let it be said, a confounding variables lumped in with what you call race).  Why are you focusing on this one?