The usual explanation for why humans are so much more capable is their flexibility, which probably results mainly from their breadth. A computer doing a task usually has available to it a far smaller range of methods, knowledge, and data. When what it has are good enough, a computer can be far more accurate and cheaper than a human. But when when a computer lacks important relevant method, knowledge, and data, then you just can’t do without that human flexibility and breadth. You might hire a human to work with a computer, but still you need that human on the team.
In our world today, most people are specialists; they spend years learning the methods, knowledge, and data relevant to an existing recognized specialty area. And when your problem falls well within such an existing area, that is exactly the sort of person you want to work on it.
