The idea that improving technology will make it impossible to 'leave your past behind' is a key plot point in the 1989 SF book 'The Boat of a Million Years' by

The idea that improving technology will make it impossible to 'leave your past behind' is a key plot point in the 1989 SF book 'The Boat of a Million Years' by Poul Anderson [0] <spoiler> The story concerns people who are effectively immortal barring death by massive injury. They don't age and often face ostracism or worse by superstitious or resentful neighbours / friends / children. They frequently (re)use the obvious solution - moving on and assuming a new identity - many times over 2000 years of different episodes. However, this becomes untenable and they eventually reveal their identity to a population that is itself becoming long-lived due to improved medical technology. It's a great read and one of those that illustrates the fact that good SF writers can often write extremely good historical novels. Many of its historical episodes are superb interpretations of periods of history that nowadays aren't particularly well known., e.g. in the post-Roman near east. [0] https://en.wikipedia.org/wiki/The_Boat_of_a_Million_Years https://en.wikipedia.org/wiki/The_Boat_of_a_Million_Years