I mean an LLM is a slightly stirred up soup of current human knowledge. It has an advantage in quantity of accumulated data and maybe connecting seemingly less connected parts of that data - but not reliably. The human has an advantage (for now) in data collection (seeing, hearing sensing the patient), actual agency, real world experiences and getting the useful data out of the stirred up soup. Both human and LLM are susceptible to bias and harmful influence. Let’s simply isolate them in the diagnostic process and then compare their output. Human collects data -> both human and LLM evaluate independently -> compare the results -> human may get new insights -> final diagnosis by human.