What is the importance of the science of dating texts?

"Knowing the composition date of texts and books is important for a student of knowledge, as it clarifies the history of composition, the author's scholarly generation, and the period in which it was written. Many scholars have mentioned the dates and locations of their compositions. This yields several benefits, including: correcting attributions made to the text and its author, and determining whether the composition occurred late in the author's life when senility might have set in. It also helps in understanding the author's settled opinion if their view on a matter changed. Many scholars have authored works on history and biographical layers (tabaqat)."