09/24/2026
A useless fact from ten years ago sticks in your head. Something important from yesterday doesn't.
The brain isn't being lazy here, it's being selective. Anything surprising or unexpected gets flagged as worth remembering, because standing out from the pattern usually means something matters.
The mistake is assuming that means training should be full of fun facts for their own sake. It doesn't work that way. A surprise only helps memory when it's tied directly to the thing you actually need someone to remember.
Picture a compliance course that opens by telling employees most of them think they know the policy, and most of them are wrong. That's a small surprise, and it's doing real work: it makes the next five minutes matter in a way a standard policy review never could.
The surprise isn't the content. It's the door that gets people to pay attention to the content.