Okay.
The answer to this mining complex is what you see here in terms of flow materials though mines and the ability to characterize the possible outputs. All the risk-based methods better do that.
The key issue one needs to bring up is that these new methods now generate bigger mines, more metal. They have a substantial increase in cash flows, as you see from the graphs here, and are a bit, more than anything, else closer to the expectations we have.
I think we'll stop here. I was planning to make comments on generalizations from the previous comments, but I guess we'll leave them for later.