When you try to do something ten per cent better, you tend to work from where you are: if I ask you to make a car that goes 50 miles a gallon, you can just retool the engine you already have.

We don't take on Google Glass or the self-driving car project or Project Loon unless we think that on a risk-adjusted basis, it's worth Google's money to do it.

People text when they're meant to actually be driving. So imagine what they do when they think the car's got it under control.

It's crazy that you have to tell your phone or your computer or your house or your car 'It's me!' hundreds of times a day. Wearables will solve that problem.