I feel like the main issue with this article was a failure to adequately define "computer" and "information processing". There were some good points. In particular the fact that a given experience will likely cause completely different changes in the brains of any two individuals is poignant in the face of Kurzweil's claims. If the claim of the article was "Kurzweil is way to optimistic" then it would have been much better. Instead it works from an entirely too specific and poorly defined understanding of what a computer is to argue a point that is fairly difficult to defend.