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.
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.