If I wanted to make it something more ubiquitous in the environment, I think of it like a peak flow meter. People will have more of a sense of that. Those people with asthma who blow get a peak respiratory flow rate through their peak flow meter. A pulse oximeter is just like that. It's just a measure. If the person's short of breath and they've got other things going on with them, actually, that's the whole picture we need to be talking about. So I don't want to be distracted. This is not a hospital in the home. It's not ICU-lite. It's just one tool that needs to have a lot of health literacy around it to do a good job. I accept some of the overseas studies that have shown that it's important, and I think it probably is, but we've got to wrap around the other education parts to make it really effective.