In an April 1st video released by Google's Matt Cutts - Matt makes it clear, Google will never stop adapting, changing the search results. The search results will always be changing, the result of that change is "flux," Matt said.
Google has to change because the web is changing, searchers are changing, devices are changing and spammers are changing.
Even if the results are perfect today, Cutts said, they still need to work on making them perfect in the future. Why? Because searchers will demand more and more.
So yes, SEOs, you need to always be adapting and changing as well.
Here is the video and yes, you will notice his shirt is changing colors as he does this video (that was part of the April Fools bit).
