The point of using a time machine is not necessarily to change the past but to explore it, gain knowledge from it, or potentially influence the future. While the concept of time travel and its implications vary across different fictional works, let's consider a few possible reasons for using a time machine:
Historical exploration: Time travel can allow people to witness historical events firsthand, gain a deeper understanding of the past, and verify or challenge historical accounts. It opens up opportunities for research, discovery, and learning.
Future insights: Time travel might offer a chance to observe or gather information about potential future outcomes. By traveling forward in time, individuals could gain valuable insights, which could then be used to shape their present actions or make informed decisions.
Scientific study: Time travel could provide scientists with an opportunity to study the evolution of the universe, observe celestial phenomena, or explore alternative timelines. It might unlock new knowledge about the nature of time itself and the possibilities it holds.
Personal fulfillment: Time travel can be a personal endeavor, allowing individuals to revisit cherished moments from their past, connect with loved ones who are no longer present, or even correct past mistakes (depending on the fictional rules of time travel).
Fictional storytelling: Time travel has captivated the imaginations of countless authors, filmmakers, and creators, leading to the creation of fascinating narratives and thought-provoking concepts.
It's worth noting that the constraints and consequences of time travel, as depicted in various works of fiction, vary greatly. In some stories, changing the past can have drastic consequences or may be impossible, emphasizing the idea that time is immutable. However, in others, time travel enables altering the past, which introduces alternative timelines or paradoxes. Ultimately, the purpose and possibilities of using a time machine largely depend on the fictional framework and rules established within a given story.