This is for the funding, but the healthcare system (and tools) can (and in my opinion should) be decentralized.

Even the funding could be partially decentralized (and when there will be a worldwide wealth redistribution system, it should be decentralized, in my opinion) We can imagine a system with an universal income for every human ( for it’s everyday life, and funding for medical devices and drugs asked by hospitals and practitioners to their local healthcare organization, which is forwarded to a committee of the united world healthcare funding system if there is a lack somewhere.