> All — most, anyway — of the bad effects of Facebook are emergent features of the system that they built for the good effects; that system itself, and its mess

> All — most, anyway — of the bad effects of Facebook are emergent features of the system that they built for the good effects; that system itself, and its messy interactions with billions of people out in the real world, creates the bad effects. This statement is imprecise. Most of the bad effects are as a result of Facebook gaming its own system on behalf of both advertisers and valuation-driving metrics (growth, engagement, etc.). A Facebook that just allows people to connect is fairly benign. A Facebook that differentially exposes metadata and drives user attention in return for money is inherently dangerous. Positive feedback loops are mathematically unstable in dynamic systems.