Nicely put. Of course, that model does not correspond to reality, nor
is it ever likely to. Traffic is always going to be controlled,
filtered, redirected, and translated at administrative boundaries.
Global, packet-level, end-to-end connectivity is dead, until somebody
comes up with a compelling argument for why a Windows PC in an
Internet cafe in Sofia, Bulgaria needs unfettered, packet-level access
to a Coke machine in a break room at Sun Microsystems in Palo Alto.