If you had a one-way ticket to Jan 1, 1999 that departs on Jan 1, 2024, and you are allowed to bring whatever fits into a backpack with you, what would you bring to use to take over the world, and how
Assume that the future can change based on your actions, so any historical information that you bring along with you from the intervening 25 years may quickly drift out of the new realities history.
Edit: also assume that you can be given a healthy 21-year-old body if you want or take your previous self's place.
Further, identification will be provided for you if you were not born at that time.
How the fuck do you take your self's place? You're either a your current age trying to identify as a baby or you're a baby which doesn't have the mental capacity to remember having the historical info.
It's simple. Say for instance you were 30 years old in 1999. You would just slot into your 30-year-old self and have an opportunity to make new decisions loaded with information about a highly likely future.
However, if you were a baby in 1999, you probably would not want to take your own life over so you would choose the new body option, and lead a completely new life separate from your old one.