Could AI make doctors obsolete?

Humans can complete this transformation because they can relate to the patient as a fellow person and can gain holistic knowledge of the patient¡¯s illness as related to his or her life. Such knowledge involves ideals such as trust, respect, courage, and responsibility that are not easily accessible to machines.

Illness is an ill-defined problem

Technical knowledge cannot entirely describe the sickness situation of any single patient. A deliberative patient-physician relationship characterised by associative and lateral thinking is important for healing, particularly for complex conditions and when there is a high risk of adverse effects, because individual patients¡¯ preferences differ.² There are no algorithms for such situations, which change depending on emotions, non-verbal communication, values, personal preferences, prevailing social circumstances, and so on. Those working at the cutting edge of AI in medicine acknowledge that AI approaches are not designed to replace human doctors entirely.³

The use of AI in medicine, predicated on the belief that symptoms are measurable, reaches its limits when confronted with the emotional, social, and non-quantifiable factors that contribute to illness. These factors are important: symptoms with no identified physiological cause are the fifth most common reason US patients visit doctors.⁴ Questions like ¡°Why me?¡± and ¡°Why now?¡± matter to patients: contributions from narrative ethics show that patients benefit when physicians can interpret the meaning they ascribe to different aspects of their lives.⁵ It can be crucial for patients to feel that they have been heard by someone who understands the seriousness of the problem and whom they can trust.⁶

Linked to this is a more fundamental insight: as Peabody put it, healing illness requires far more than ¡°healing specific body parts.¡±¹ By definition illness has a subjective aspect that cannot be ¡°cured¡± by a technological intervention independently of its human context.⁷ Curing an organism from a disease is not the same as establishing its health, as health refers to a complex state of affairs that includes individual experience: being healthy implies feeling healthy. Robots cannot understand our concern with relating illness to the task of living a life, which is related to the human context and subjective factors of disease.

Medicine is an art

Throughout history, the therapeutic effect of doctor-patient relationships has been acknowledged, irrespective of any treatment prescribed.⁸ This is because the physician-patient relationship is a relationship between mortal beings vulnerable to illness and death. Computers aren¡¯t able to care for patients in the sense of showing devotion or concern for the other as a person, because they are not people and do not care about anything.

Sophisticated robots might show empathy as a matter of form, just as humans might behave nicely in social situations yet remain emotionally disengaged because they are only performing a social role.⁹ But concern ¨C like caring and respect ¨C is a behaviour exhibited by a person who shares common ground with another person. Such relationships can be illustrated by friendship: B cannot be a friend of A if A is not a friend of B¡¯s.¹⁰

A likely future scenario will be AI systems augmenting knowledge production and processing, and doctors helping patients find an equilibrium that acknowledges the limitations of the human condition, something that is inaccessible to AI. Coping with illness often does not include curing illness, and here doctors are irreplaceable.