fathom - 11:11 am on May 10, 2009 (gmt 0)

I suspect "google did absolutely nothing"... beyond what it normally does when it crawls and updates your domain on the fly.

If you look at the "expired process" as merely a major website redesign... if you have widgets on an established domain and one day decide to switch to portapotties... you would probably get the identical effects as you saw with your domain "gist" switch to some other gist... including all new web pages (possibly even a new homepage location).