Physiologically, memories are anchored by emotions, so strong emotions kinda slow down time and turn on verbose logging so to speak. So anything you remember, even trivia, has *some* emotional payload making it memorable. Even 3.141592...
Was puzzling on that.
Can something be meaningful and unmemorable at same time?
Possible that most meaningful things are unnoticed when they occur.
Then are elevated to memorability at a later point to illuminate their meaning.
We smuggling meaning into the future. :)