Of course it’s not that simple. Who on the face of the earth doesn’t know the brain is not a gpu? Think really hard on this. Isn’t what you stated obvious information to a programmer?
The neuron in ML is based off of the simplest mathematical model of what a neuron does. The neuron in a human brain is a physical realization of this with much much more complexity where much of this complexity is arbitrary as a side effect of being physically realized.
You can't build a model out of an object and then say that said object is an instance of the model. The model is an useful derived abstraction that sometines can serve for better understanding reality and making predictions (emphasis in sometimes), but it is not reality itself.
The neuron in ML is based off of the simplest mathematical model of what a neuron does. The neuron in a human brain is a physical realization of this with much much more complexity where much of this complexity is arbitrary as a side effect of being physically realized.
But again I’m regurgitating what everyone knows