You were never meant to remember all of this

In the last note, we said that the gap between today’s patients and yesterday’s software is being filled by memory. This one is about that memory — and why we should stop leaning on it.

You spent years learning medicine. You know your work.

But knowing something isn’t the same as recalling it, accurately, at exactly the right moment. And let’s be honest: there are too many drugs.

Thousands of molecules. Thousands more brand names. Interactions, side effects, and doses that change with age, weight, pregnancy and kidney function. You know the medicines you handle every day inside out. Nobody knows everything about every one of them — and nobody should be expected to.

What we ask people to hold in their heads

For every patient, often in a few minutes, someone has to keep track of:

• what they’re already taking
• what they’re allergic to
• which conditions change which doses
• which combinations are dangerous
• what the treatment guideline says
• what to tell them before they leave

Then the next patient walks in with a completely different story, and it all starts again. Akosua is on warfarin and wants something for back pain. Ama is twelve weeks pregnant with a headache. Kwame has a throat infection and a penicillin allergy. Yaw is six, weighs 18 kg, and needs the right dose of the right syrup.

It doesn’t matter whether that’s a consulting room, a ward round or a pharmacy counter. The pattern is the same: different person, different question, same head doing the remembering.

Memory is not a safety strategy

All of this is recalled under pressure — with a queue, between interruptions, at the end of a long shift. That isn’t a knowledge problem. It’s a memory problem.

And relying on memory alone, in that environment, is not a safety strategy. When it works, it’s because a skilled person was having a good day. When it fails, it fails quietly: the interaction nobody recalled, the dose nobody rechecked, the allergy recorded somewhere nobody looked.

The problem isn’t that professionals know too little. It’s that too much rests on one person’s memory.

Other fields stopped doing this

Other high-stakes fields worked this out long ago. Pilots use checklists not because they can’t fly, but because the cost of missing one step is too high. The checklist doesn’t fly the plane. It makes sure nothing important is forgotten.

Medicine deserves the same idea — applied not just to steps, but to knowledge.

The knowledge already exists. It’s in the references, the guidelines and the patient’s own history. What’s missing is a way to bring the right parts of it forward, for this patient, at the moment it matters — so the professional’s attention can go where it’s needed most: listening, asking the extra question, explaining the medicine properly, noticing what isn’t being said.

But “bring forward what matters” raises a harder question: what does matter, for this particular person? That’s the next note.

Next: What does this medicine mean for this patient? →