“What is accepted as knowledge today is sometimes discarded tomorrow.” Knowledge itself can be compared to a small child who is about to begin a long journey of learning. Why this comparison? Because, as the child grows and goes through all the school years, over time he will learn more and more than before. The same situation can be applied to knowledge itself. The pursuit of knowledge has brought humanity to the point of development we are at in the 21st century. As time has passed, new ideas and methodologies and key technological developments have led not to the elimination of knowledge, but to the modification of our previous knowledge. The word "discarded" can be used to represent two different ideas: either discarded as a complete elimination of previous knowledge, or discarded as an idea that is modified, so it can be argued that the previous one has been discarded and replaced, although it is still present in the foundations of this new idea. However, how can we be sure that all knowledge is completely discarded and not changed by new discoveries? We once believed that, for example, genetic manipulation was something only in science fiction, like “A Brave New World” by Aldous Huxley, or the movie “Gattaca”. However, it is now a reality that we are facing and researching even more. On the other hand, we can argue that in history, our knowledge is influenced by sensory perception, language and will always be partial, since “history is written by the winners”. This idea leads to the fact that, alongside technological developments, natural sciences have not discarded and replaced knowledge, but have modified what we had with new discoveries. Furthermore, the scientific method itself lists repetition as one of its 5 steps. This… half of the paper… as stated earlier, the definition of discarded is not entirely accurate, as knowledge is never completely discarded, but rather modified. Technological advances, theories, ideas and methodologies are all based on something. That something is defined as the basic knowledge needed to get started, and over time it has never been discarded, but rather reshaped into what it is today, making what we once believed was only for science fiction part of our reality and of our daily life. Lives.Works CitedDeVito, D., Shamberg, M., Sher, S., & Lyon, G. (producers), & Niccol, A. (director). (1997). Gattaca. [Moving image]. United States. Columbia Pictures. Dombrowski, E., Rotenberg, L., & Bick, M. (2007). IB Diploma Program – Companion to the Theory of Knowledge course. Oxford, New York: Oxford University PressHuxley, A. (1932). Brave New World. United Kingdom: Chatto and Windus.