aristotle - 12:42 am on Nov 18, 2013 (gmt 0)
Well everyone is entitled to make their own interpretations and form their own opinions. As I said before, Google itself made a big deal about several of the new alterations and additions to their algorithm, especially Panda and Penguin, and bragged about how much the SERPs were improved. Why would they make such a big deal about it unless they thought the effects were significant?
As for the percentages, there's a lot of ways they can be calculated, and as far as I know, Google has never said how they do it. So there's no way to really know what 1% or 3% or 12% means.
But even 3% seems like a pretty big change to me. As I said earlier, stable rankings undergo SLOW GRADUAL changes and evolve slowly over time. A 3% chamge in one day is not slow and gradual, it's sudden and sharp. That's my opinion anyway, maybe yours is different.
But I'm going to abandon this thread at this point. I wanted to discuss what I think is a fundamental problem with Google's overall approach to their SERPs, but the thread has gone in another direction that doesn't much interest me. Maybe I'll get a chance to talk about that some other time.