Is that documented somewhere that you can share? If it’s well known then there must be a ton of articles and papers about such phenomena.

The data is there in the wikipedia page linked earlier on the Flynn effect under "Possible end of progression".

i mean just google it, the pause in flynn is a very well known effect in the developed world

Do you habe any data to back up your claims? If not you are spreading misinformation yourself.

The data is there in the wikipedia page linked earlier on the Flynn effect under "Possible end of progression".

So was 2020 the peak of intelligent commentary on the internet? I seem to recall that the quality of discourse was much higher around the year 2000, even though average IQ was higher in 2020.

I think this is a red herring. It used to be harder to access the internet, and it selected for a certain type of person. Today, in the era of the smart phone, virtually everyone in wealthy nations is on the internet. Most notably, that includes vast numbers of children.

I bet if you looked poorer countries where few people have internet-connected devices, the quality of discourse is much higher. In particular, there are likely few children participating (and the ones who do likely have unusually proactive and involved parents).

The red herring is a fair point. I have had to moderate comment sections off and on over the years and there are times when the magnitude of stupidity overwhelms you, so I was venting a bit.