McCullough’s argument that computers are made for the mind and not for the hands is accurate enough to apply to most of computing devices today. However, increasing awareness and improvement have also happened in the past 10 years to make computers more adaptable and friendly to different parts of human organs. Let’s take iPhone as an example, Steve Jobs’s insistence that iPhone should be used easily with our fingers is a huge step forward to force software designers to develop their applications according to how users physically interact with them. Old palmtop computers are considered as failures because human are not used to holding a pen when they interact with computers. So the claim that computers are made just for the mind should be considered as rather outdated since physical interaction with computer is quite different now thanks to touchscreen technology.
On the other hand, there has also been movement of shifting the focus of making computers just for the mind in the past decade as well. Take google glass, virtual reality, and self-driving cars as example. These technologies are created so our hands can do less labor. The interaction is shifted away from the hands to the voice or to other bodily movement. Even though these movements have yet to be widely adopted, the focus of computers right now is leaning towards being a tool for human’s most natural movement. For example, if a task can be completed the most easily with our mouth, then the designer should strive forward to design the interaction with the mouth. Hands are definitely very subtle and sensitive, but the affordance of hands should also be considered because not all tasks should rely on hands. It’s interesting to note the creation of iPad pro has actually bring back the pen just because our hands aren’t precise enough for certain art creation process. So McCullough’s point of view on the relationship of hands are art is also being constantly challenged as technology develops.