>>11427301No-cloning theorem, bro
Uploading yourself to the internet and cloning yourself is a sci-fi myth
Physics ensures that no exact copy of anything could ever exist. It would always have a flaw
However, the best way to obtain immortality is to literally control time and space
Breaking FTL would ensure that you can also go time travel. That way, you can keep anyone from dying simply by restarting time and undoing your mistakes before it could even happen
[spoiler:lit]Time paradox come separately[/spoiler:lit]