> One failure that makes the internet inoperable also takes out everything that depended on it, which shouldn't be "everything".
While the current structure may not reflect this (and, to the extent it doesn't, this is a problem), a central part of the idea of the internet is that it should be structured so that a single failure would at most make a minor part of the internet unusable, and perhaps cause a two-way partition between remaining usable parts, not make "the internet" unusable in a general way.
