> This is as zero-sum as it gets. Given the impact of FaceBook on political and media systems, I think that this a strongly negative sum game. Spreading "junk

> This is as zero-sum as it gets. Given the impact of FaceBook on political and media systems, I think that this a strongly negative sum game. Spreading "junk food news" and other lurid conspiratorial stories is a negative externality, like venting pollution.