End to End and Top to Bottom

I read stuff like this (Kling not Weinberger) and amazed at how quickly people forget the other important thing about the internet - it is three dimensional. We have the "Inside-Out" that Saltzer, Reed & Clark dubbed the "End-to-End Principle". *BUT* We also have the Bottom-to-Top that we call "the Seven Layer Model" - these aren't different ways of looking at the same thing, they are different parts of the same thing. This gives the 'net the dimensions that it needs to perpetuate itself.