[pharrington]

Like, one consistent behavior of properly functioning toddlers is that when they see something they don't know about, they try to put it in their mouth. Most of the world is unknown. You know, with 100% certainty, that as soon as possible, they will move in some random direction and put the random object in their mouth. So one component of competent parent is ensuring the toddler doesn't move to some dangerous location and try to put the dangerous thing in their mouth.

Analogously, maintaining a nuclear power plant is a very involved procedure, and if key individuals neglect to pay attention to certain monitors for what what in other contexts is a short period of time, failure occurs.

Yes, it requires constant attention. Not giving the task the attention it needs is to fail to care for it properly.