[perl4ever]

>No, Alan Turing would be pretty bad at digging ditches

It's a contrived example that illustrates something general. It could still be true - maybe Turing would have some insight that let him do half as much labor. But whether it's actually true for him is irrelevant.

Let's say the manager of a McDonald's started out making hamburgers and does it better than any of the other employees, but doesn't normally do it any more, unless there's a crisis and they have to fill in when nobody else is available. Or some software engineer at Google would be better at processing data for litigation purposes than anyone in that industry, yet they outsource the work.