And what better way to start a reasonable, tactful discussion than to compare IQ scores across countries using a cartoon:
But wait! This is based on a controversial 2002 book, “IQ and the Wealth of Nations”, which has been essentially shredded by other academics, for a whole host of reasons. Example:
"For instance, Lynn and Vanhanen (2006) accorded a national IQ of 69 to Nigeria on the basis of three samples (Fahrmeier, 1975; Ferron, 1965; Wober, 1969), but they did not consider other relevant published studies that indicated that average IQ in Nigeria is considerably higher than 70 (Maqsud, 1980a, b; Nenty & Dinero, 1981; Okunrotifa, 1976). As Lynn rightly remarked during the 2006 conference of the [International Society for Intelligence Research (ISIR), performing a literature review involves making a lot of choices. Nonetheless, an important drawback of Lynn (and Vanhanen)'s reviews of the literature is that they are unsystematic.
So while the video is… cute… the data it is based on is suspect if not outright garbage. That hasn’t stopped people from returning to the dataset to justify all sorts of arguments, some of which are straight up racist bullshit.
For anyone who delves into such discussions, especially on academic channels, discussion of variations in intelligence itself is tantamount to racism, which is bullshit from the other end of the spectrum.
So sharpen your shovels and feel free to dig into the respective piles here.