Fascinating because this doesn't exactly break down with any specific map trend I've seen. They often break down on political axes and the New York/Connecticut/New Jersey area looks very different from the south.

It looks like a combination of obesity and urbanization.

Think of the individual photons as different locations where a single universal wave function has high density, not as distinct particles. The idea that they are distinct only holds while those locations don't interact and interfere significantly.

Once they interact, the resulting waveform will have other regions of high density. Mapping one of them back to one of the original ones and saying this new photon is the "same" as that original photon is something that might make your brain understand it better by pretending they are Newtonian objects. But it's just a model for understanding, and the further the interaction is from Newtonian collisions the more wrong it will be.

The collection of all info in one place is one part of the problem.

The other is that existing EMRs are receipts for insurance reimbursements, not true health documents. There's not going to be a standard way to code a previous abusive relationship.

A distributed ledger doesn't help with that, unfortunately the tail is wagging the dog and the centralized control lies with the insurance carriers rather than the providers. So the records fulfill their needs first and the patient's last.