Some *thing*, no, but we have seen the same thing with a slower feedback loop before: every conspiracy that comes along. Adherents fall into a trap of believing each other, getting more and more extreme. And losing the ability to rationally consider relevant information. An example I hit: 9/11 truthers. I wanted to put some scale to numbers, compared the energy of the fall to a small nuke. He seized on that as my admitting the towers were brought down by a nuke and I had a hard time explaining that it was simply a comparison.
It used to take filtering through a group of like-minded nuts, now we don't need a slow filtering through other nuts.
Yep, and the emergence of social networks became a real catalyst for that. But that still requires humans in that feedback loop, it takes time and attention. And people also have different opinions, even if they believe in roughly the same conspiracy (was it a plane, a truck bomb, a nuke?).
ChatGPT provides an instant sycophantic reply. I think they toned that down a bit, but it's still completely unparalleled.