Agree with your prediction in many cases but not bookkeeping. The whole point of bookkeeping is to balance the ledger to the penny so people would toss bookkeeping altogether before accepting a 'probabilistic' output. Agents will be used to accelerate the recon process though, or maybe they will become advanced enough to provide a (correct) deterministic result.

So the worst outcome? We will still demand deterministic bookkeeping, but everyone will attempt to "optimize" using non-deterministic tools and assitance? Kind of feels like the US/Canada tax codes of today...