Correlation vs causality. I've read another paper in a French acadamic review another study showing a correlation. In all cases, as always, only a large meta-a

Correlation vs causality. I've read another paper in a French acadamic review another study showing a correlation. In all cases, as always, only a large meta-analysis of these studies may lead to a conclusion of a correlation. And if that correlation exists, having a mental illness doesn't imply you're smarter and many super smart are in good mental health. And where do we draw a line between mental illness and a person having some issues to solve - as everybody does? Psychiatrists have assessment tools but those are by nature linked to a particular society. So the line varies from a society to another. For my part, I think that many western societies are pathogenic by their organization. People with some level of responsibilities are under an enormous pressure from their top management, in order to meet their exorbitant level of wealth extortion from the employees and workers. They do well financially in comparison to workers but they don't get rich. They are the one paying the psychological price of extorting that wealth, while having enough information and intelligence to understand that they won't ever belong to the 1% and being the motor of this atrocious excessive form of capitalism. Another sort of issues is to not fitting well with others. Or you're super smart but don't know what to do of your life. You understand too well how the system works towards a bad future (climate crisis, depletion of biodiversity, social inequality getting higher and higher, probable wars to come between the West and Russia and the China, democracies turning into authoritarian regimes...). But I do agree that Mensa is certainly a place with higher proportion of "issues". One needs to have personal issues to want to belong to a private club of "super IQ" only. The principle of it is totally absurd. If I were to date someone who belongs to Mensa, that is definitely a red flag. I could belong to Mensa according to a test I took with a psychologist ; that's 2% of the population so we are many who could. All the Mensa members I met couldn't help dropping their membership in the conversation - like some can't help letting you know they studied at Harvard 25 years ago. Smart people are as idiotic, pedantic, boring to hell as the rest of the population. To finish, IQ tests ate tailored to pinpoint a very specific form of intelligence, conceptual and verbal. An human being is much larger that. So the whole principle of these tests ate dubious - except for the very few reasons where they can help. For example, when you see a smart kid doing bad at school, an IQ test may prove that the cause of his/her issues is not the academic potential. Maybe for certain specific jobs, but I don't know for which they are really suited for and on what grounds.