A lot of people assume that creating software is purely a solitary activity where you sit in an office with the door closed all day and write lots of code.

The future of advertising is the Internet.

Creating a piece of software is always complicated because you're doing something new. If you just wanted something that had been done before you'd just use that old piece of software. So there are no repetitive tasks.

At every juncture, advanced tools have been the key to a new wave of applications, and each wave of applications has been key to driving computing to the next level.

I've always been amazed by Da Vinci, because he worked out science on his own. He would work by drawing things and writing down his ideas. Of course, he designed all sorts of flying machines way before you could actually build something like that.

Other paths would include making nuclear fission cheap enough and safe enough that people broadly embrace it, so that could be scaled up.

Almost every way we make electricity today, except for the emerging renewables and nuclear, puts out CO2. And so, what we're going to have to do at a global scale, is create a new system. And so, we need energy miracles.