There are a billion people who's childrens IQ are being permanently reduced from lack of infant nutrients. You have many billions of people alive who have had

There are a billion people who's childrens IQ are being permanently reduced from lack of infant nutrients. You have many billions of people alive who have had this happened to them. Then toss in the other things that reduce IQ post infancy. Lot of scope for worldwide improvement. Looking at the top countries is a different important. But understanding the Flynn effect would be step one which isn't happening. There don't even seem to be any theories. When you can't even find crackpots YouTube talking about it, there's an issue.