What I find most interesting is the discussion of the tradeoff between doing things perfectly and using less resources. Even what seems like a relatively simple task like spell checking consumes vast resources when done on Google's scale. It's worth remembering when we're thinking about why other parts of the algo work they way they do - it may be the result of a similar tradeoff, where Google is doing things in a way that they know is sub-optimal in order to save resources.
I can't get video to play properly will try later but the faces in the room show how seriously they take search quality however what I saw was out of touch with current seo tactics which seem focused on negative seo
Interesting. I think this should make you realize that the algo is ultimately written by a bunch of guys in a room that are prone to make some mistakes. Fact is .1% could actually be 5% or even 10%, and it would take another Thursday meeting or maybe more to correct it.
what I saw was out of touch with current seo tactics
In this video they are focused on user satisfaction for ALL their users - and rightly so, IMO. I doubt that they will publish a video where they talk about defeating specific SEO tactics. But I can tell you from discussions with Googlers at Pubcon, Matt Cutts' team has a lot of that going on too.
Yup. Almost everybody was using an Apple MBP or Air. Not too surprising to me really since I first noticed this trend by programmers switching to Apple laptops right around when OSX (i.e., Unix) came out - and that was over ten years ago.