I agree to the above comments. Time travel is interesting and could be possible. The life and technology we have at present came from the dreams and theories of many famous inventors.
Time travel offers a good opportunity and chance to correct our mistakes in the past, to be with people close to our hearts for another chance which is good. But time travel will have its own disadvantage too, I agree with @carey-page, if people can change the past, it can affect the present and future life, time travel will keep us from growing. The beauty of life also comes from our inability to change the past, with that being said, we do our best in our present to attain a better future.