I am quite sure memories are evident in everyone no matter what type. There is one thing that confuses me, I tend to hold memories quite easily. I can remember something as far back as my pre-kindergarten years where people I have known in those memories have forgotten. I can remember an event as simple as being in the doctors office waiting in line. But from MBTI, this sounds like a Si trait.
Certain things like songs can potentially trigger a memory I have forgotten in the long list of memories that I have.
The problem is, do other ISFPs tend to have this sort of thing occurring? Could it be my Fi holding my memories dearly(in the sense I value my memories?) What about Ni in this case?