All data should only exist within the light cone that it is used within. That means a lot of data is improperly used today in terms of where and how it is moved

All data should only exist within the light cone that it is used within. That means a lot of data is improperly used today in terms of where and how it is moved. You need a lot less information "over the wire" when it doesn't move as far, and when you can speculate and predict what to render (ML/AI). What matters is the package and space more than anything. Go figure. That's also why "massively distributed compute/swarm computation" makes sense in this mesh like model you hint at. The future is strictly local data unless we totally escape time dialation over large distances, whether or not we bypass speed of light limits. The future is strictly a simulation if we are a multi-galaxy species, let alone spread across the galaxy. The only way to have a real-time conversation is to simulate the person/ego. The local copies would be as real/eventually consistent as possible over time.