Background: In the last few days, I came across an experience that made me wonder how our brain manages "memory resources".
As time progresses further from an experience I've had in my life, I realize that I have begun to forgot details that are important and supposed to be "kept", not lost since I was able to recall them in the first days following the event.
I remember what happened, who was present, and why it happened, but I'm beginning to lose track of "when" the event happened.
This may be a filtering process or a defense mechanism, but in any case, I'm not focusing on the reason behind that, rather I'm interested in avoiding such "holes" in memory in the future.
In a generalized way, given the facts that we can obtain by answering the questions "what", "why", "who" and "when", which of these are the first facts to be forgotten?