[zAy0LfpBZLC8mAC]

> This is quite arguable, as most people plug in a router, or even more commonly, have Comcast do it for them.

And yet, they are not limited to communicating with other comcast customers.

Whether that would be the best model for social networks, I don't know, but I think it is important to recognize that you do not need every individual to build their "server" from scratch to achieve some meaningful benefits of decentralization. If comcast doesn't like you, they cannot cut you off from the internet, and that is already a pretty big advantage over walled gardens.