The history of mankind is very long and twisted. In order to, preserve this long history, humans have developed huge libraries around the globe. While many spend their whole life research it, there is a group of people who ignores it and are termed as a waste of time. The two contradicting views are faces of the same coin. On the one side tend to learn from past experience in it while on the other hand, few ignore it, as it's the past and will be irrelevant in the present or the future. We will discuss both sides one after another.