Model around ownership
Orleans grains offer a useful boundary: one logical owner for each strategy or account-level concern. This reduces accidental concurrency while keeping activation and placement decisions outside business logic.
Reliability needs explicit policy
Virtual actors do not remove operational design. Idempotency, durable state, retries, backpressure, observability, and exchange-specific failure handling remain product requirements.
Scale follows isolation
Good boundaries allow workloads to move and scale independently. More importantly, one misbehaving strategy should not compromise unrelated execution.
Draft article placeholder: add validated architecture diagrams and operating metrics before publication.