You don't want this at the object level anyway. You want to have objects clumped into vats, which are related object graphs that are isolated from other vats bu

You don't want this at the object level anyway. You want to have objects clumped into vats, which are related object graphs that are isolated from other vats but freely intermingle otherwise. Then, messages between vats invoke turns of delivery inside vats independent of other vats, and we can schedule one vat per processor.