>They are great at making word soup, but not great at diagnosis.
No they are.
>There have been expert systems since the 90's that perform better on average than doctors when diagnosing illness in patients,
No there has not been.
No they are.
>There have been expert systems since the 90's that perform better on average than doctors when diagnosing illness in patients,
No there has not been.
Context is important. 66% accuracy on cases that stumped doctors and took extensive testing is not trivial. It's not the same as 66% accuracy for everyday diagnosis.
Expert system diagnostic tools aren't that great.