While time travel is an interesting concept often explored in science fiction, it is important to note that time travel has not been proven to be possible within the framework of our current understanding of physics. It remains a topic of speculation and hypothetical scenarios.
However, even if time travel were to become possible in the future, it would not invalidate the importance or relevance of physics. Physics is the fundamental science that seeks to understand the laws and principles governing the natural world. It encompasses a wide range of phenomena, from the behavior of subatomic particles to the motion of celestial bodies, and provides a framework for understanding and explaining how the universe works.
Physics helps us comprehend the fundamental forces and interactions that govern the behavior of matter and energy. It allows us to make predictions and understand the properties of objects, the behavior of waves, the nature of forces, and the workings of the universe on both the smallest and largest scales.
Even in the context of time travel, physics would play a crucial role. The concept of time travel would likely involve complex concepts such as general relativity, causality, and the nature of spacetime. Understanding the underlying physics would be essential to navigate and comprehend the implications and limitations of time travel.
Therefore, regardless of the possibility of time travel, physics would remain a fundamental and invaluable field of study, providing us with insights into the workings of the universe and enabling technological advancements that shape our world.