Okay.
Generally, when these things are developed, there are three phases. When I refer to new technologies for commercial use, there are three phases.
The first phase is getting the idea and doing the research to understand what the possibilities are, and coming up with ideas about what might work. We've largely gone through that, I think. There's more work to do, but in terms of closed containment....
The next phase is demonstration projects. I think that's the phase we're at, the phase that we're entering into, namely to demonstrate these things on a commercial scale. What generally has happened, and not just with this technology but with others—though we'll see if that's the case—is that as they get introduced, you do demonstrations projects. And there are often public funds that go into this, because it's not commercially viable yet. So demonstration projects go into it. We see which technologies work, by trying a number of different ones. At this point that we're at, we make our best scientific-inspired guess about what's going to work effectively. And generally what has happened—and we've seen it in things like carbon capture and storage and other technologies—is that the price or cost starts high and gets driven down with practice. And as it becomes more accepted in industry, there's an economy of scale to be able to use it. We don't know if that will happen in this case.
In terms of new bright ideas coming out, I'm going to throw it to Jay—or anybody—to suggest the next generation of things that we're hearing about. I think at this point we're at this generation, and still testing out some of the ideas.