In short, you advise us to foresee the future, explore unknown unknowns and expect high-precision true answers from the outside. Good advice, not for this unive

In short, you advise us to foresee the future, explore unknown unknowns and expect high-precision true answers from the outside. Good advice, not for this universe. You can only get false negatives in this one. A synthetic key means “we think exists”. There exists a contract, a medical record, a person, in a real world, in our opinion. We record these existence identities into our model by using an always-unique key. Then there’s a date, an appointment #, a name, etc. You can refer to an entity by its identity, or search by its attributes. If you use searches in place of identity references, you get non-singletons eventually and your singleton-based logic breaks.