[HDMI_Cable]

I think its mostly groups on social media. Some groups can be rational, like a jury, or a committee full of intelligent people. But for them to be rational, there has to be the correct incentives and culture of discussion (i.e. no social media algorithms, or divisive politics).

[belter]

“Madness is something rare in individuals — but in groups, parties, peoples, and ages, it is the rule.”

― Friedrich Nietzsche, Beyond Good and Evil