The blog is an incredible thing. Irrefutable evidence.

It's less common now, but once upon a time morons with column inches would rant about the vacuity of the blogosphere. This was invariably a sign of a journalist who'd earned their inches by chance, blackmail and flattery rather than skill and insight.

It's rare now, but, even so, it's handy to keep examples like this at hand. It will shut down even the dullest mouth:

Daniel | Cosmic Variance:

... I am delighted to announce the addition of another new member of the Cosmic Variance team. Daniel Holz is a Richard Feynman Fellow in the theoretical astrophysics and particle physics groups at Los Alamos National Laboratory, working on the interplay between general relativity, astrophysics, and cosmology. Dan is a particular expert on gravitational lensing and gravitational waves...

This is the golden age of journalism ...