“Really, it's just the scale of the opportunity. Some of the other companies I've built, it was two or three of us in a garage or an attic banging out code and mission accomplished. We had built what we wanted to build. There's a lot more to the ambition of what we're trying to build here. Frankly, I think this is the most interesting business I've built both in terms of the enjoyment of building it, but also in terms of the actual opportunity here. So, what we're trying to do is just at a bigger scale than Writely, for example.”