For the in situ the big cost is more energy cost. It's not as capital-intensive as it would be for open-pit mining. Okay.
That concludes where I'm going at this point. The only other question I have is if you could crystal-ball gaze--and the new technologies are way out there--if they began to get implemented, if we began to do this, would it have a significantly different impact when it came to the environment and economics and so forth, or would it have a very similar impact to the open-pit mining we have now? What different impacts would we have if we started a technology swing from merely open pit--and I know that's going to be going ahead--if we began to expand beyond open pit? Do some crystal-ball gazing. I realize you can't do too much, but do as much as you feel comfortable doing about how that would impact everything from economics to environment, etc., in the projects.