It speaks to economics. A business process that works "by itself" most of the time, but requires human intervention once in a while, is still a functional busi

It speaks to economics. A business process that works "by itself" most of the time, but requires human intervention once in a while, is still a functional business process. The unit of "software + 5% of this person's time" is perfectly workable. And if the cost of the fix is more than the NPV of 5% of that person's time, it isn't worth making. Catastrophic failure risk, of course, changes the analysis. But a huge range of things are not catastrophic in their failure modes.