For every old blackboard there are now hundreds of new electronic computers.

If you had gone to a customer in 2013 and said "Would you like a black, always-on cylinder in your kitchen about the size of a Pringles can that you can talk to and ask questions, that also turns on your lights and plays music?" I guarantee you they'd have looked at you strangely and said, "No, thank you."

No customer was asking for Echo. This was definitely us wandering. Market research doesn't help.

The reason we chose vertical landing as our recovery architecture is that vertical landing scales really well.

Humans are unbelievably data efficient. You don't have to drive 1 million miles to drive a car, but the way we teach a self-driving car is have it drive a million miles.

I think there are going to be a bunch of tablet-like devices. It's really a different product category.