However, this is done in a way using a novel method called multi-party or federated computation and this is one of those privacy enhancing technologies that are just recently theoretically turned into commercially available. Similar technologies include federated learning, homomorphic encryption, differential privacy, and many other toolkits. Now, this may sound very alien, but at root, it solves a paradox. The paradox was, if I trust my clinic, my doctor, because I trust them to act in my best interest, and my doctor trust the national health care system because they trust they’re acting in the citizens best interest and the National Healthcare System trust telecom carriers or the National Center for high-speed computation, because they’re aligned in its values. The trust is not transitive. It doesn’t mean that I automatically trust our supercomputer, trust cluster because I know nothing about how it works. So, when many trusting relationship gets built this way, actually, everyone’s trust loose a little bit.