As our current understanding of physics stands, there is no widely accepted and practical method for time travel, including traveling faster than the speed of light. The theory of relativity, particularly special relativity, suggests that as an object with mass approaches the speed of light, its energy and momentum become infinite, making it impossible to achieve or exceed that speed.
While there have been various scientific theories and discussions on the concept of time travel, such as the concept of wormholes or time dilation near massive objects, they remain highly theoretical and have not been realized or proven in practice. These theories often involve extreme conditions, such as the existence of exotic matter or negative energy, which have not been observed or harnessed.
It's important to note that time travel into the past raises many paradoxes and logical inconsistencies, such as the grandfather paradox, which raises questions about causality and the possibility of altering events in the past. These paradoxes present significant challenges and further complicate the idea of practical time travel.
While time travel remains a popular subject in science fiction, for now, it remains speculative and beyond the realm of our current scientific understanding and technological capabilities.