If you look at the data, you see that about 80% of the patients who you send home with chronic disease don't actually have a problem. They manage quite well. It's the 20% who do, so you need to have an economical way of getting to the 20%. This absolutely does not replace a practitioner at any level. It helps the patient self-screen themselves to know if they're okay or not. Immediately that you see.... You're not diagnosing yourself; you're just answering a question like you would do on a phone call. Then a practitioner is in contact with the 20% who really need them, because the other 80% are fine.
The problem is that in health care you don't know who the 20% are if you don't have, for example, a mechanism to call them. It's very cost-effective to deal effectively with the 80% who are fine and to identify those who need help. Then we leverage the nurse and/or their family physician, because they work in partnership—or a specialist if they need one.