[authorfly]

A great experiment to do would be to sit people down and have a quiz application like Duolingo randomly choose answers, them seeing if the answers are right/wrong.

I suspect, much like experiments showing how people prefer/like (Familiarity effect) art they have seen in a previous session (even if months later and they don't remember and can't explain why they like it more than other art!), that students would pick up some correct/incorrect answers, because they can't help but read and notice any interesting differences from their mental model.

I have built an app which prepares exercises for you based on your subject and uses LLM-chosen emojis to represent each exericse. It notifies you with the emoji for each lesson each day with the idea of a visual cue but now you mention it using a dynamic icon for the app might be more important of a visual cue (to get the daily cadence/habit), rather than something recognisable