I think it's an important lesson in science, not to expect perfection. And it's actually, it's really important to know that, because that means something is going to happen that you don't know what it is. Well, how can you… how can you… something unexpected is going to happen. So how can you expect the unexpected? When are you going to expect that something unexpected is going to, so you're kind of prepared? Well, the best way to be prepared is to not try to get narrow answers, you know, get yes/no answers. But you want to kind of look around the issue. You want to see the stuff that doesn't seem so important - it's not goal-directed. You know, if you have a goal, you don't want to... when I was working on this therapy, you know, for the virus, and we were funded by some drug companies, they didn't want us to go off on tangents, that, you know, that we think, gee, well, it doesn't have to do with the manufacture of the drug; this is pretty interesting stuff. They want you to, you know, they have land… what do they call them? Not landmarks, but…

[Q] Milestones.

Milestones, yeah. And they have, somebody's got them at an office in some top level of the drug company, and you have to sort of check in on the milestones so often. And if you hit the milestones, the stock goes up, you know, and if you don't hit the milestones, the Wall Street guys find out about it, and the stock goes down. So there's a lot wrapped up in not looking at extraneous stuff. Which, I think, in the long run is not a good idea, because actually you miss... because the history of science is, you always find stuff that you hadn't expected. That was certainly, you know, that's my personal experience. We weren't looking for a hepatitis virus, but we were prepared for the unexpected.

That's another Heraclitean... you know, Heraclitus, the 3rd, 4th Century BC Greek philosopher, I suppose. And he said you… you have to expect the unexpected, because it's fleeting. He's the same fellow who said, the same philosopher who said, you can't step twice into the same stream, you know, because it's always changing. Everything's in flux; you never can do the same experiment twice. And experimental science has tried to get around that by… by putting a cork in the test tube, you know, you put item A into item B; chemical A, chemical B. There's a cork in the test tube, so nothing outside gets in, then you look and see what results. But the cork's not tested, you know, there is no cork in the… in the world. So you'll always have this interference. I'm not arguing against that, because it's the development of experimental science that actually has brought us to where we are now, but there are limitations to it. It's not… it’s not always the… always the answer.