> It's not that eliminating bad nodes is a good solution, it's just that when you eliminate the dangerously influential bad nodes (the bad ones with a disproportionate amount of connections), it can have the effect of redistributing interactions more evenly in the graph, which means any given node is more likely to be exposed to a greater variety of nodes.
There are at least two problems with this.
The first is that as long as you have an algorithm which is isolating people into silos and frothing people for "engagement," all you're going to do is create another one.
The second is that the bad man doesn't actually disappear from the world, and many people will follow them to wherever they go instead, where they're even more isolated and have less opportunity to break out of the bubble. The general trend is also causing alternate social media platforms to spring up which are splitting the population along party lines. Having more platforms is good, having the platforms be implicitly partisan is terrible. And having everyone on the right move to other platforms would leave the existing platforms with only people on the left, which will melt their brains just as much. You need the opposition around to keep yourself honest.
> Which I believe is an alternative formulation of your comment about the need to regulate algorithms.
Regulate algorithms can't work. Never mind the obvious First Amendment problems, think about the incentives. To fix the problem would be to break the business model; stop driving engagement. Billions of dollars at stake. So the political incentive is instead to let them keep radicalizing people, as long as they're radicalizing people for whoever is currently in power. If this isn't sufficiently alarming to you because of who is currently in power, imagine the public official they have to appease is Trump.
What we need are social media companies with a different business model. Ideally in some kind of federated system with competing discovery algorithms so the harm from a bad one has less scope, and people can choose not to use the ones known to be malignant without having to opt out of the networks with the largest network effect.