I don't think that Bob's essay goes against layering per-se. It's about the OSI layering specifcially not being suited to describe the current Internet anymore.

I don't think that Bob's essay goes against layering per-se. It's about the OSI layering specifcially not being suited to describe the current Internet anymore. Layering is very much alive, but I tend to agree that we need a richer and better suited layering model.