I find it telling that in this AMA as well as a few other interviews he seems to be noticeably more excited about the educational startup that he's a CEO of tha

I find it telling that in this AMA as well as a few other interviews he seems to be noticeably more excited about the educational startup that he's a CEO of than the driverless car or glass projects. I guess no matter how great an environment an employer provides (and my understanding is that Google X is an upgrade from the regular Google) there's just more excitement when you're captain of your own ship.