Memory is fleeting

A perfect memory does not exist. Memories are supposed to fade with every passing moment of remembrance. The only true memories that remain straight are the ones we forget the moment they happen. So then what is the point of them? Good or bad, we have no other option but to remember or not to remember. We cannot just cease to recall anything. I wonder why all memories that are recalled seem to delude themselves. is this even a scientific fact? My memory is fleeting as well for I cannot remember how I learned such a piece of information