It is harder to see how something affects your state than to see how it affects your community. It becomes even harder to see how something affects The Nation. And extremely difficult how something affects The World. So that's why I changed the title. Here's my defense.
Computers are complicated.
Most people would agree. However, having said that, I will admit that what a computer can do by simply distinguishing between ones and zeros is quite remarkable and looks extremely complicated. And, if the health of the individual is still too complex, we could break it down even further to the health of the individual's body, mind or spirit. We could break these parts down even further you get the idea. Having said that, I am not going to claim that common sense is the answer to everything.