Just to expand on the part of “ill defined question”. “Human intelligence” might not be a scale that goes up and down, so it’s a bit hard to say for sure. There is probably at least a tradeoff of flexibility vs specialization. There is also physical constraint where intelligence might be limited due to the whole brain/ machine becoming a distributed system (and you can’t have proper single point consciousness, for example). Though we don’t even know if consciousness is related to intelligence.