How can a person travel into the future of their original time line, what might be considered their “present”, given that once in the past, a divergent time line is necessary to preserve continuity? Seems that once a person travels back in time, it may be impossible to go back “home”.
why, what did you do???
Not possible, You will only be able to travel along your alternate timeline. Recent Theory suggests it’s possible by locating the exact sweet spot between a White hole and a Black hole, but most of us think that will only result in your being squished.