Uh, I do think that failure is very important. And, you learn way more from failing than you do from succeeding. Um, you know, Monument Valley is the most successful game that I have worked on. But, it wouldn't have been possible if I hadn't made a lot of mistakes working on, you know, many other challenging projects. You know, I spent 10 years doing that. Uh, Monument Valley itself, we did go through a bunch of failures. When we had the initial idea for the game, we were trying to prove out, essentially, a vertical slice. We were trying to make a typical Monument Valley level. And, it went horribly. We - we spent months making - spending a lot of time making these two levels that were really poor user experiences. You know, people would be frustrated. They'd get exhausted, you know. And, it was horrible watching people get exhausted by, what we believed, was a good idea. You know, good mechanics. And, we thought our implementation was good. But, we had to learn from this. We had to be honest. And, say, like, you know what? The user experience is not good enough. And, it - that's okay. We're going to - just - we're going to throw away this work, you know. That's - that's a mistake. That's broken game play. And, we're going to start again, and we're going to make better levels. And, we - we made way more levels than were in the game. We had to teach ourselves how to make good Monument Valley levels. And, that meant making a lot of poor levels. And, I - I do think that, that's essential to success. You know, I have a theory that the - one of the more efficient ways to make games, is to make the game two or three times over, right. You make the game. And, then you throw it away. And, then you make it again, knowing what you know, and improving on it. And, then you do it again. Um, and I - I see that happening. And, I see people kind of brutalizing themselves over it. Because, they missed deadlines. And, I wonder if what we should be doing is building that into the schedule. And, saying, I'm going to build the game three times, in the time allotted. So, that I'm only - I'm only going to come up with a very small thing. But, it's going to be a real gem, because I've re-worked it.