The idea of using light waves to travel through time is an intriguing concept, often explored in science fiction and speculative theories. However, it is important to note that our current understanding of physics, particularly the theory of relativity, does not support the possibility of time travel in the conventional sense. According to our current understanding:
Special Relativity: According to Einstein's theory of special relativity, as an object with mass approaches the speed of light, its relativistic mass increases, and time dilation occurs. Time dilation means that time appears to pass slower for the moving object compared to a stationary observer. However, this does not allow for backward time travel. It only means that time passes differently for objects moving at different speeds.
Causality and Paradoxes: Time travel into the past raises fundamental questions about causality and the potential for paradoxes. If one were able to travel back in time and change events, it could create logical inconsistencies or paradoxes, such as the famous "grandfather paradox" where a person goes back in time and prevents their own existence.
Considering these limitations, if light waves were somehow used for time travel, it would require a radical departure from our current understanding of physics. The consequences and implications of such a scenario are purely speculative and lie outside the boundaries of our current scientific knowledge.
It's worth noting that the exploration of time travel is an active area of scientific and theoretical investigation. Researchers continue to study the concept, explore alternative theories, and consider possibilities such as wormholes, exotic matter, and other hypothetical phenomena. However, as of now, time travel using light waves remains firmly in the realm of science fiction.