Whenever we remember a series of events, we remember them different. We are constantly changing. It's a flaw, but on the other hand, when we say a word, the meaning is not what you put into it. Rather, the meaning of the word is all of the past usages of that word. Like this cloud that makes up the meaning of the word. It's your subject if you write. For instance what you put in that word and what you assume it means, even its flaw. It has a general agreement.