How does time dilation affect the possibility of time travel?

Time dilation, a concept from Einstein's theory of relativity, states that time can pass at different rates for objects in motion or in strong gravitational fields. This means that as an object moves faster or experiences stronger gravity, time for that object slows down relative to a stationary observer. This effect could potentially allow for time travel to the future, as an object traveling close to the speed of light or near a black hole could experience time passing more slowly compared to a stationary observer. However, traveling to the past is still considered theoretically impossible due to paradoxes and inconsistencies that arise from violating causality.