Since my primary focus is on SEO, Search Engine Optimization, and when I look to optimize a web site, or a web page, I am looking at Google, then the rest of the search engines, I care about what Google thinks. Google accounts for over 88% of all search these days, so all I really care about in the search space is how the web page is seen by Google. Remember, Google does not publish anything about it’s technology, nor will it, ever. You can only glean this information through SEO experience, and listening to SEO professionals. So when the CEO of Google speaks, it is very important to listen !