Put another way, you may be comfortable enough with computers to remember what directory your files are in, and handling backups manually, and all that. But my mother, despite decades of my attempts to the contrary, is not and never will be. And far more people are like her than me (and, I suspect, you). I think this is what Larry Page is in part talking about when he invokes the idea of the 1-percent-of-what-we-could-be-doing.
Take a look at my colleague Sharon Vaknin's test of Google Now vs. Siri. They're both remarkably capable by the standards of even three years ago, but unlike Siri, Google understands context. "How tall is President Obama?" <answer> "By what margin was he reelected?" <answer> http://howto.cnet.com/8301-11310_39-57584898-285/google-now-...
I'm echoing what ender7 wrote above, I think, but you can't have a useful conversation with 10 blue links.