So how does the universe itself “calculates” things in real time. How do so many operation “render” on the quantum/classical scale. Forces adapt in real time?
Even the idea that anything is being calculated is a supposition. There appear to be relationships between entities and some of them can be modelled using human math on human-accessible time scales.
But although some of the models have potentially infinite precision the universe itself clearly doesn't on any scale.
Or if it does, it's not accessible to us. So whatever is happening may use some other paradigm to manage relationships, and the entities and relationships we see are emergent and not at all fundamental.
this is also why I think that artificial consciousness (big difference to intelligence) is a whole lot harder than many people think. a stack of papers where someone has manually written the neural net (or whatever technology) computation and results is unlikely to have a subjective experience. because there is an indirection between a simulation and the real world. the simulation is a computation. the real world happens.