Comment by Someone

> We are not talking about say the brain or the central nervous systems. That would be like going to multi-master from single node - lot more fundamental complex rebuild and rethink of the core architecture.

The central nervous system already is “multi-core”, with tiny logic handling such things as the patellar reflex. https://en.wikipedia.org/wiki/Patellar_reflex#Mechanism: “This produces a signal which travels back to the spinal cord and synapses (without interneurons) at the level of L3 or L4 in the spinal cord, completely independent of higher centres”

Other examples at https://en.wikipedia.org/w/index.php?title=Reflex

These tend to be actions that need fast feedback loops.