decentralised

I'm listening to: http://w3c.github.io/vctf/meetings/2016-06-08/  @~40
minutes an issue about whether or not the Decentralised identifier
methodology works and until their is something that exists with a million
or so use it - it's a research project..

So, Internet protocol and the Domain Name Server methodology, how's that
not a decentralised identifier system for machines?

Putting politics aside, i would have thought on a scientific level; the
internet itself is a decentralised platform that proves the case for DID?

My other question is whether its safer as a WebID project, or something
else.

Tim.H.