Random thought: what if we did on IC what Ethereum does and let anyone run a node for query purposes only?
For example, I could download the catch-up package for a subnet, initialize my node from that, and then use that node to serve query requests. (Periodically also syncing with the latest subnet state by downloading newer catch-up packages.) Certified variables, which are native to IC (but don’t exist on Ethereum AFAIK), could help keep these “query nodes” honest.
Could this scale queries way beyond what’s currently feasible? What am I missing?