I'd like to read the article, but I consistently get the "this page has become unresponsive" error. Not really a ringing endorsement for a Javascript library. :)
I am not sure why you have problems to access the page. Works ok for me. Try again! This has nothing to do with Closure though, it's not used in the page ;-)
AFAIK he's using jQuery for the blog page. Probably compressed with Google's compiler, but still.....