The concept of time travel is intriguing and has been a popular subject in science fiction. However, there is no scientific evidence or widely accepted theory supporting the existence of practical time travel.
In theoretical physics, there are discussions about the possibility of time travel based on concepts such as wormholes, black holes, or cosmic strings. These ideas emerge from the mathematical equations of general relativity, but they remain highly speculative and do not currently have experimental validation.
Since time travel is purely speculative at this point, it is challenging to determine its precise effects on our present and future generations. Various theoretical models propose different scenarios, such as the possibility of changing the past or creating paradoxes, but these are largely hypothetical.
It's important to note that time travel, if possible, would likely have significant implications for our understanding of causality, free will, and the nature of the universe. The consequences would be profound and far-reaching, but until there is scientific evidence or a robust theoretical framework supporting time travel, its effects can only be a matter of speculation and creative imagination.