Originally Posted by thommy

....

this update is not done yet and it will takes weeks (if not months) til it is complete.
and after it is complete you will see even more fluctuation because google announced that already 2 years ago that they are working on a "single page index" what means nothing else that you can own a domain with 100 k subpages and if only ONE is relevant only this one page will appear (before the complete domain did not appear in such a case).
and they announced also that they will react in near real time.
and that means that your page can be number 1 in the morning and a few hours later you will not find it anymore.

I am wondering why everybody is so surprised about what happens - google told us LONG BEFORE what they are planing to do.