American IQ scores have rapidly dropped, proving the 'Reverse Flynn effect'

I haven't read the comments there but IQ differences among genetic groups is real and deeply studied, it is one of the least refutable things about homo sapiens that we know. Should we be able to talk about it?

The problem I see on this topic is that many people takes sides on the debate it as if it were an immutable story, to be used as a judgement for all time, fueling people's good or bad political purposes.

But if anything, time and history has shown us that even if you adopt the proposition that IQ scores measure something meaningful and some groups score less than others -- the situation is totally changeable and moveable. People become more educated, more skilled, share more culturally over time.

There is nothing intrinsic about IQ that cannot change. So to use is as if it means someone is "inferior" is just a fallacy or at best a blinded snapshot in time.

Don't use the concept this way.

I said nothing of the sort. I said that the difference exists and asked if we should be able to talk about it.