Built to be fast and wrong

You have a threat detection system, and it does not work on evidence. It works on pattern. It fires first and checks later.

There is a reason it was built that way. Missing one real danger costs you everything. A hundred false alarms cost you an unpleasant afternoon. Given that arithmetic, a system that is fast and often wrong beats a system that is slow and usually right.

So the alarm goes off on a shape in the grass, on a tone in someone's voice, on an unread message from your manager. It is not making a claim about the world. It is making a guess, quickly.