Thanks to Chris for setting this up.Before I jump into questions, let me provide a little background. First, cislunar1000 is more of an idea or a vision than a program although portions of the transportation system that could support it are in development as part of ULA's future roadmap. We start from the premise that humanity ought to establish permanent presence beyond earth. (BTW, I spent 20 years writing a lengthy book justifying that premise as a moral imperative). It seems obvious to me that one key to achieving this goal is the establishment of a self-sustaining space economy. The alternative is to have governments do it all, which is the model we have now with a few exceptions like comm sats. Since economies run off consumers, and all consumers for the moment reside on earth, the space economy has to return value to people on earth. That pretty much limits our near term horizon to cislunar space.Second, I see ULA's role as an enabler from a transportation point of view. Our expertise (and charter) is rockets and stages, particularly high energy upperstages using LO2/LH2. ULA has more in space experience with LO2/LH2 stages than the rest of the world combined, by an order of magnitude.Third, technologies we have in development right now like IVF and cryo storage and transfer, enable our next generation upper stage, ACES, to form the backbone of a cislunar transportation system.Finally, one of the most important discoveries of the last decade is the wide availability of water in the inner solar system. It's on the moon, many asteroids and Mars. With water you have propellant for ACES, and can achieve very low cost, and virtually unlimited reuse.To whet your appetite, we have a video coming out in the next day or so (very low budget featuring yours truly and one of my team, Eric Monda. Be kind). Also, I just made a presentation at the IEEE space solar power conference which I'll get uploaded to our website soon.Thanks for the questions!