An important aspect that the author, in my opinion, doesn't touch is attention. Most of us, humans, tend to be capable of paying attention to a _single_ task for little time, such as some hour. Now, take a computer. A computer, given sufficient electricity is capable of paying attention to such a task until its hardware has problems. Imagine if someone such as Einstein or Schroedinger were capable of paying attention to a single task (such as unifying physical theories) without needing food, water, waste release, sleep, social life. Also the task is poorly defined: increasing an A.I. intelligence isn't a single task, it can be achieved by, for example, creating faster hardware, increasing efficiency, optimizing software, as well as much higher level tasks.