I was sitting in his office one day and talking to his very pretty secretary, and not doing any work, and I just reached above behind me. It's literally true, there were all his theses from previous students. I pulled one out and it was one on slime molds, and I just couldn't believe it. And so I immediately started reading it and it was by Kenneth Raper who got his degree, his PhD, about 10 years earlier than I did, and it was absolutely wonderful. So that's what… And I wrote to Ken and he immediately responded with cultures, and everything else. And at that time, there were only two people in the whole of the world who were working on those cellular slime molds, and it was only that a few others crept in, in the next 10 years or so. But then, the thing that happened was, when molecular biology came into the fore, then instead of having – I had a graph showing this – instead of having five or so papers per annum that were on slime molds, it suddenly went to 120.   It was the beginning of the slime molds, but I think already though, I knew I wanted to work on some organism like that, and I was actually searching for it and there were a lot of good possibilities, but this is the best.