An emergency room does not treat patients in the order they arrive. A nurse sorts every case within minutes of arrival, deciding who needs attention now and who can safely wait. This system is called triage. And it has nothing to do with running a business on the surface. Look closer, and it has everything to do with it.
This is intersection thinking in practice. It’s forcing a collision between two fields that have no obvious connection and letting that collision generate a new idea.
Why Triage Exists
Triage exists because an ER cannot treat every patient the moment they walk in. Resources are limited, and treating cases in arrival order would let a minor issue delay care for someone in real danger.
The system forces a decision within minutes. How urgent is this compared to everything else waiting behind it?
Where This Applies Beyond Medicine
Most people run their week the way an ER would run without triage. Tasks get handled in the order they arrive, by email, by request, by whoever asked loudest. Urgency gets confused with priority, and priority gets decided by whoever interrupted last.
The result is a full day with very little that actually mattered getting done. This reminds me of the Eisenhower Matrix where tasks are rated by urgency and importance.
Borrowing the Fix
ER triage sorts patients into a few categories, based on how much harm will result from waiting. A version of this applied to a workday might sort tasks into three tiers: things that cause damage if delayed today, things that can wait a few days without consequence, and things that only feel urgent because they just arrived.
The discipline is not in the categories themselves. It is in applying the same sort, quickly and consistently, before the day's noise takes over.
A Worked Example
For example, a founder faces a Monday morning inbox with twenty unread messages, three of which are marked urgent by the senders themselves. Without a system, the founder answers in the order the messages arrived, and the loudest sender gets attention first regardless of the stakes.
Applying a triage lens changes the process. The founder sorts quickly into three tiers before answering anything. A client threatening to cancel a contract this week sits in the tier that causes real damage if delayed. A vendor asking about a renewal next month sits in the tier that can wait. And a colleague asking for feedback on a document that was just sent, marked urgent only because it is new, sits in the tier that feels urgent but is not.
Five minutes of sorting changes the entire shape of the day. The founder spends the morning on the one conversation that actually mattered and answers the rest that afternoon with no cost.
Why the Categories Matter More Than the Labels
The exact names of the tiers matter less than the discipline of sorting before reacting. A triage nurse does not treat every case with equal urgency because urgency is loud. She treats each case according to consequence, decided in advance by a consistent method.
Bringing that same discipline into a workday means resisting the pull of whoever asked most recently or most forcefully, and instead asking a single consistent question of everything on the list: “What happens if this waits?”
The Larger Point
Intersection thinking is not about copying a solution from one field into another unchanged. A hospital's triage protocol cannot be lifted directly into a calendar. The value is in noticing the underlying pattern, a fast, consistent method for separating true urgency from noise, and asking where that same pattern might solve a problem somewhere else entirely.
This is a skill you can practice deliberately. Pick two fields with nothing in common. Ask what problem one has already solved that the other still struggles with. The answer is rarely obvious on the first try, and that is exactly the point.
Intersection thinking is one method we work through on Day 2 of the Applied Knowledge Is Power workshop, running September 23 and 24 on Zoom.
