Recalling Memories
Have you wondered why you could not recall your dreams, but could when you just woke up? I'm not an expert, but these dreams are based on what you have already seen, so they are just playbacks and are therefore not "recorded". Since our memories are recorded in some unknown ways that might vary on top of having so many things already inside. If you have been doing/staring@ it for a long time or if it's significant enough, you would remember it. However, if you think too much on trying not to remember it, you would remember it anyway. This is not recalling on exactly how many tiny insects like ants we have stepped on at a particular area or the MD5 hash code of a particular file, but how effective/detailed we learn and recall things depends several things: familiarity, duration, age, health, location, distractions, and other things. In general, the most recent can be recalled easily, but one from a long time ago has to be significant enough for you to remember it.