> Can my perception, which by definition is subjective, be measured objectively, by some technology, at least in theory? Perhaps. If by "some technology" you m

> Can my perception, which by definition is subjective, be measured objectively, by some technology, at least in theory? Perhaps. If by "some technology" you mean "your doctor asking you what your perception is", sure. Yes, patients lie, which is why there's a whole field of study around when and why patients lie, and detecting that. > Practically speaking, is it going to be measured in this context? Am I going to get a prediction on how I personally will feel when choosing one thing over another? No. Yes. Do your really think you're the first person in hundreds of years of medicine to think, "Hey, maybe we should personalize treatment based on what patients want."? This is a science that is still far from mature, and we're a long way from being able to make accurate predictions in every situation, but at this point we can definitely predict patient satisfaction with a high degree of certainty for common cases, based on what the patient says they value.