 I was going to say, David, there's a man here and his name is Ed, Ed Paul for Editorial Policy. I'm just checking, is there something that he can say that we can get through? Can we get that through? Well, I've published quite a few. We've published 30 papers on this. Then you published papers on this. Tell me, how did you publish papers on this? What sort of things you found in your research about this?