Agreed on decentralization, but the current direction on encryption is amazingly hostile to it - i.e. with no standards for defining the borders of your own network, or trust relationships, the ability to do caching sanely just goes out the window.

Which is bad for decentralization - because decentralizing really really requires an ability to offload and delegate where data is stored - it's not practical, for instance, for my phone to cache huge chunks of the web, but a server in my house that's always on (or has a more reliably available power supply) can do it.