“We write all of our own tools, no matter what project we’re building. Pretty much anything that we’re doing requires some sort of design tool that didn’t exist before. In fact, the design tools that we write to do the projects that we’re doing are a sort of product in and of themselves. I think in reality, today, if you use the same tools as everyone else, you kind of build the same products. If you write your own tools, you can sort of see new things, design new things.”
Saul Griffith, Wired magazine