How do you keep robustly pro active without data? Of course megabytes of data isn't a direct measure of health. That also isn't what medjourney is proposing be the metric. They didn't say "doctors will review the storage requirements of your available data and be able to tell you...". It's a straw man. Comprehensive imaging isn't a full insight into health. Neither are many questions in a medical history. But accurate and easy to obtain medical imaging is certainly a strong addition. Neither are complete, both are extremely useful and important. It's defense in depth. Included in an annual physical, imaging from even existing methods would have saved the lives of more than one family member who died of cancer gone undetected despite following existing best practices for preventative health. It's also impractical and expensive, though cheaper than years before. Faster cheaper and more accurate seem better still when it will be an additional channel of information.