This is a pretty good takedown on thinking eugenically, but let me add something to that: it doesn’t matter who you are, at this precise moment. Twenty years from now people will think of you as lame; fifty years from now, embarrassing; eighty years from now, subtly horrifying; and two hundred years from now they will panic at the very thought of being sent back to this time.
The good news: six hundred years from now they’ll be quite fond of you, largely because they’ll have no idea at all what you’re actually like and so they’ll just make something up.
Moe Lane
PS: No, that applies to everybody. Even if our descendants think that they like you it’ll typically be for all the wrong reasons.
Eugenics? Goodness gracious no. At age 49 I am quite happy with me. And I am quite alright with everyone else being who they are. Now being and doing are very different things altogether; so I can scorn eugenics while advocating prisons and not be a hypocrite.