This isn't an original thought, but ... this should be big for medical access in developing countries. The problem there is a shortage of doctors. So you could imagine a setup where you have "nurses" who go through a 6-month training course on how to collect symptom descriptions, put it into GPT-n, and then refer x% of cases to a real doctor.

Whatever the setup in the end, I hope we as a society don't let perfect be the enemy of the good. Having GPT-4 as a doctor is (I assume) better and more humane than having no doctor, and in some contexts that is the only choice that people have.

Maybe the Gates Foundation can work on this given Bill Gates is already close to the OpenAI team.