The article seems to make wild assumptions (Score 1)

So, here's a thought experiment, say you made an artificial equivalent of a neuron that behaves the same way externally. Now, you swap out the neurons with the artificial ones, while you're still conscious. You wouldn't know if one neuron was replaced, but at some point all your neurons will be artificial, you've just transferred your mind to a different platform. In reality, we'll likely develop machines which can behave like the brain and interface with the brain. Once we start getting augmentations, they will become part of us. Just like the brain changes as the child matures into an adult. Eventually, majority of the brain could be composed of the artificial components, and losing the old hemispheres will be no different than shedding a toe nail.