Matt Cutts has a PHD in computer science and was selected by Google to be a sort of spokesman. no small thing. I already expect a great lecture, and In general I get. These clips always live to my expectations, and they are not small. Congratulations.
My first thought was like: 'God... I don't have 25 minutes to see what Matt has to say'.
But I'm glad I had ;)
And the best thing was that I really know all those things that you were talking about but in fact it was good to hear it all together.
So congratulations, another great video. :)
Oh and I like the fact that Google this year started really interacting more with active users and I think that it's very good to both sides.