They say it is power. I say it provides a base for insight.
In my life, I have spent irretrievable moments declaring my inability to retain information. Yes, I have a hard time remembering specific factoids, historic information, and, I am ashamed to say, even events in my own life. But why do I feel shame at another person's judgement of my memory? It's not their loss of personal history, it's mine, and in all honesty, it has never really bothered me that I forget because I am always able to remember the feeling. I have emotional connections to recollections. Although there is no movie playing in my mind, a series of sensations and warmth of feelings wash over me when events are recalled to mind. Perhaps more valuable than those pictures and words and scenes locked in memory are the impressions we are left when time passes and events conclude.