—even energy generation types of systems that you don't see as much of today.
As I mentioned to you when we were talking to you earlier, my best friend is a builder. One of the things that drives him nuts is the duplication within the code itself. You want to go with a newer technology, but as soon as you go with that newer technology, you have to add the capability of the older technology as well, just in case somebody at some future date decides they want to go back to that.