The vision for Echo and Alexa was inspired by the Star Trek computer.

Google will fulfill its mission only when its search engine is AI-complete. You guys know what that means? That's artificial intelligence.

If you look at things like Google Now also. Maybe you want to just have [a question] answered for you before you ask it.

Sergey also came on very early, probably in late '95 or early '96, and was really interested in the data mining part. Basically, we thought, "Oh, we should be able to make a better search engine."

Stanford would be first. You can take universities and just rank them, and they come out in the order you'd expect. So we thought, "This is really interesting. This thing really works. We should use it for search." So I started building a search engine.

In late 1995, I started collecting the links on the Web, because my advisor and I decided that would be a good thing to do. We didn't know exactly what I was going to do with it, but it seemed like no one was really looking at the links on the Web - which pages link to which pages.