Medicare Advantage insurance companies are using secret algorithms to choose a time to refuse to keep paying for a treatment. Patients and their lawyers are not given the supposed reasons for the decision so they have no easy way to challenge it.

The article calls these algorithms "AI". What that means is not clear — I expect it is mere machine learning, but it might perhaps be a system that draws confusions for reasons. Either way, the details of how the algorithm operates are not important. The crucial point is that they are secret.

Some countries have considered laws to forbid the use of secret algorithms to make decisions about how a person will be treated — and not only in medicine. I think the US should adopt such a law.