Well, one of the big advantages, in retrospect, is I really didn't know much about astrobiology. Actually, I knew rather more than I thought I did because I, you know, I read "Nature" and "Science" fairly regularly, and I was always attracted to those stories. Of course there was a lot of stuff in the press during those days. But I do- I knew that I didn't know as much as the people who had been working in the field so as a consequence I didn't have any concerns about listening to them, in effect, doing what they thought they should do. Also, I didn't have a bias towards any particular part of it. So the NASA Astrobiology Institute was a fascinating place. It had been, to my mind, you know, its organisation had taken place prior to, the outlines of the organisation, had taken place prior to my arrival, and I was expecting, my role, it was meant to be for a limited time, because I was in my mid-70s, I was going to, you know, put it on a kind of scientific direction they wanted it to be, and I took that message very clearly, that it was a basic science institution. There's always a big struggle at NASA. NASA's primarily an engineering operation. I have incredible respect for those engineers, it's amazing, the most complicated things humans have ever done, with incredible success, the level of success for really hazardous missions, I'm not talking about human hazardous, sadly, there are those as well, but, you know, you work ten years on a mission and it blows up before it takes off, or, you know, it gets into space and it doesn't do and it doesn't communicate. NASA has about an 85% success record on missions which is pretty good because, you know, if they just stayed doing safe stuff, they'd have 100%, but they're always, to my mind, moving forward and taking- and taking necessary risk, again, you don't take risks with human missions, there's always some risk, obviously. So it's mostly- it's an engineering culture. So, but about 15% of the professional staff are scientists, only 15%, the rest of them are engineers and technicians but to my mind, and I think everybody else's mind, once you get up there, once you get those high platforms, you're going to do science, and, you know, people recognise that, but then if you get into an argument about who's going to get the money, the bottom line is, listen, if we don't get that missile up there, you're not going to see anything, right? That satellite up there. So there was that clash but- but actually it wasn't a big issue. It's become more so in recent years. So my directive was to- I made it clear with Henry, but the person who finally hired me was the then administrator of NASA, Dan Goldin and Dan was very dynamic, you might say a colourful person in a lot of ways. I thought- I always thought he- he- he was a man with great vision, like Tim Talbot was a guy, you know, he and Tim were in the same class of vision. Well, when you have vision in space, we're talking about pretty big vision, you know. Looking back to the origins of the universe, you know, many of these things. There's a famous image, the- the Hubble Deep Field Image, the director was allowed a certain amount of time on the- on the Hubble, the time on the Hubble was booked years in advance, and he- what he chose, the director of the Hubble, what he chose was to look in a kind of dark part of the sky and to take very long exposure, you know, so that they could register this thing exactly, so, for I think about a week, you know, every revolution, they were taking- they were accumulating light. Well, the initial one, you can see back from about one and two or three million years from the Big Bang and the most recent one- the most recent, it's called the Ultra Deep Field, you can see back, you know, several hundred million years. Now, the physics is you can't see the origin. There's a kind of a shield against- against vision, much earlier, but when you're looking at that image, you're looking down a tunnel of time, a tunnel of distance and time, and those kind of- the stuff you see in the very early part are all these crazy kind of nebulae and they're, you know, they're just forming. They're all young and odd colours and shapes and that light started it off 14.2 billion years ago and you're looking down this tunnel. That's amazing. So, vision is- is- is big and also there's a big time dimension. We just launched- well, I can say we- a mission to Pluto in the outer- in the outer belt, there's a whole bunch of kind of small planetoids. Pluto's now considered a planetoid because they're in that ring which Pluto orbits. There are several other bodies that are- that are- that are bigger. Okay, that's going to take eight years to get there, after a very successful launch.