Google takes a minute to explain the history of the Google Search engine and how it has evolved and also how Universal Search [explained] works where they combine all of the various kinds of media types; web pages, images, video, text from books.... and how they get it to you faster.
If you deconstruct this video you quickly see that using other types of media besides web pages is the future of how Google plans to get you information.
OK Universal Search... return different media types in a single search. But really what does this mean?
1. Mobile devices doing search are better optimized for video. (30 % of our videos are being watched on a mobile device now)
2. How does Google make money? Selling ads, and if you haven't clicked on one of their ads in a general search, they make no money... but if they present a video result, namely a YouTube video link, this not only provides Google a second chance at charging someone for an ad impression, they also keep you in their eco system, instead of say going off to the New York Times.
Seems simple to me! What do you think?