> I don't have any data to back this up but my overall feeling/ideology is that we can't have groups larger than some number.That goes contrary to my personal experience with a www that wasn't mainstream yet, but most certainly already had larger groups of people.
As tired and lame as it might sound, imho the biggest culprit is social media and what kind incentives it has set.
Social media does not thrive on facts and information, it thrives on emotions, but dry boring non-sensational headlines and information don't make people emotional.
What makes people emotional, and interact with your platform, are the crass headlines and claims, the dramatic stuff. So that's what gets pushed to people, and they react accordingly by liking it, and at that point it's already a self-reinforcing loop with increasingly more sensationalist and crass claims that constantly need to top each other to stay relevant.
It also directly affects what kind of content people contribute and most importantly how they do it; All the big "influencers" spend quite some time and effort in optimizing their content for that extra reach, along with that come certain behavior routines to sell the content, which then get normalized.
And because traditional media struggles to keep up with that, and stay relevant, they also get colored by this, not only by having made social media their new source of reporting, but also by making their own reporting more in line with these trends.
Too many just chasing the dopamine kicks from the "likes" and "karma", it feels like mass-hysteria that's steadily increasing in intensity.