I had read in a book that we remember things that happen to us and when using the Memory Palace techniques what ever we imagine our mind thinks that those things had actually happened to us,
I think that most people in this world remember the things that someone had not done for them more than the things that someone had done for them
And I think that we can remember more the Things which happened to us in which we were not helped by certain people whom we know or were even hindered by them.
And I think that a technique can be created or the Memory Palace Technique can be extended as when using the original Memory Palace technique our brain thinks that the things which happened our Memory Palace actually happened to us
But if the Memory Palace technique is extended with the text I had thought two paragraphs above then our brain can think that we were really not helped or even hindered by certain people whom we know in our Memory Palace and we will remember that and we can also assosiate information to them in some way and depanding on the suceess of the implementation of the information in this post you may even be able to create an extended version of the Memory Palace which can increase recall.
Have a Great Day.