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.