The reason why you have memory is not just to remember the past, describe your objective world and wallow in misery as it may be.
This is what you think it is but not for all of us,better to live with what we have in the past years.
the reason why you have memories is so that if similar something bad or good that happened in the past wants to show up in the present, you could figure how best to handle it with alacrity as much as possible.
still that says a memories , you have just expanded the explanation but the reality is still the memory.
For the bad memories, you make sure they doesn't happen again.
For good memories, you make sure that you replicate it.
yet? we still remember right? still that is memory that gives you that.