> What I mean by this is a CDN consists of nodes that are horizontally replicable and don't really talk to each other, and thus are easy to run even at scale.

> What I mean by this is a CDN consists of nodes that are horizontally replicable and don't really talk to each other, and thus are easy to run even at scale. This is only true if you exclude problems like “finding a CDN node from the device,” “managing congestion,” etc. as part of the problem statement