To be clear, any quantum computation can be simulated on a classical computer, but it takes exponentially many steps. This is proven mathematically already, with the single exception that it's not proven that a better classical algorithm couldn't remote the exponential difference.
There is a missing piece of the puzzle all right, it's the huge role the environment and body play in developing intelligence. Everyone's focusing on quantum effects or just the brain forgetting that all they learn comes from the experience of the environment on the body.
The forces that shape and restrict life are the same that guide our learning process and evolution. We're looking too close to the brain and missing the big picture. Embodiment is the thing we're glossing over.
Quantum intelligence or consciousness seems like a detour, a blind walk into mysticism unless someone can prove there are things in neurology and AI that only make sense from a quantum perspective.
I think there is some definite upside to knowing the ultimate complexity of a single neuron.
Is it a detour? I don’t think we can say for sure either way until the question of how a single neuron works is settled.
Yes, they are, in that neurons are made up of molecules which are held together and bind due to quantum effects. But that's the limit of it.
Could you elaborate on this? Are you referring to a specific research result or waxing poetic?
We can barely model the humble nematode c. elegans with its 330 neurons.
By the butterfly principle, sand walls on the beach do alter the world's tides.