Depends on how you define "organism", I think. If you mean an entity possessing some sort of unitary consciousness, then yes, thoughts would become slower the l

Depends on how you define "organism", I think. If you mean an entity possessing some sort of unitary consciousness, then yes, thoughts would become slower the larger you scale the brain. If you mean distributed information processing system, I think you can classify the entire universe as one, and there's no such thing as a "thought".