Come to think of it, 90% is pretty low for a course of totally unnecessary chemotherapy that cold've been avoided by a human doctor noticing, as humans often do, how dumb the provided explanation was. So maybe even as a patient this isn't an obvious choice.
More generally, I'm super amused by the idea that the Master Algorithm will fall out of the brilliance at few big tech companies, but only if they could have access to my purchase history or porn viewing habits from the past decade.