For myself.. I'm essentially of the view that the brain can be simulated through alternate means (I'm from a maths/phys/comp-eng background).
But... at the same time, I've learnt a lot more about neurons in the last 15 years. And... unless I'm mistaken, many of the mechanisms of the brain are not modelled in artificial neural networks.
Having said that, I'm not an expert in either of the relevant fields. I'd be interested to know what progress is being made. And as I say, I see no theoretical reason why the entire brain cannot be emulated.
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