A big part of my story is how the main character regains his memories gradually and it allows to make him more "human." I was considering doing it as a sort of reward effect. Complete X goal or action and have a memory regained. I also thought of having it simply come gradually and at any time I desired. This allows a more free flow and I could thus put the memories in places according to mood. I tend to like fantasy a bit more than Sci-Fi, when writing, due to the fact that I don't have to worry about debates over the possibilities of what could or could not be. Fantasy readers just tend to shrug it off as, "whatever it's magic." However, I have a series I've been working on for a while now and had an entire change of the concept. Originally I started off with a main character. Than I had a basic outline of a novella. I started falling in love with the idea of creating beautiful memories that conflict with current reality; pain, love, and struggle. The MC is put in a setting with no memories and then slowly regains them as he begins to develop into something new. After that I just had to figure out a way that I could make it all work. It's a series and my setting is a bit out there, but I wanted the whole universe to be my oyster. I came up with some crazy ideas to give access to multiple time periods and virtually any location I wanted. Then I started reading more books and came up with my own unique idea that is well... a hellova lot better and less confusing. The question I'm trying to get across though is it acceptable to interlace past memories in a story which has a completely new setting? Keep in mind that the only other human interaction will be from his memories. He's set in a survival-esque situation and it may at times break the flow of action, but it's become essential to the entire plot and eventual twist. I'm not looking at a Jason Bourne type idea, but are there any examples of a character having amnesia and then developing as the book progresses? I'm just looking for references, so I get the flow right.