I have a similar opinion to Alicorn's, but I would not use the term 'remember.' In the case of dissociative amnesia, there is a mind-moment which retains all my skills and all my general preferences, from which preferences about specific things could, in principle, be reconstructed. Thus, that mind-moment is much more similar to my current one than it is to a randomly-selected human mind, let alone a randomly-selected arrangement of the same mass.