And in those days shall men seek death, and shall not find it; and shall desire to die, and death shall flee from them. Rev. 9:6

You can not learn what it means to be human, after 20, 40, 80 or even 120 years. You are not fully grown or developed in your 30’s, in your 300’s, or even in your 3000’s.
It began when we become immortal. We were promised unending life and perpetual health. We were given machines that provided food, or whatever we could imagine. We rejoiced in our good fortune. Earth was full so we left. We sought a home among the stars.
Our two ships were both a great O’Neill Cylinder, a spacious rotating cylinder with enough room for a thousand NYC, LA, Paris, Rome and Babylon’s packed inside and with room to spare. We lived on the inside of the cylinder and our inverted sky was lit by the metropolises we prided ourselves on.
We joined in bands and tribes of like-minded open-minded people bound only by love. Perpetual youth, perfect bodies, endless time and the hormones to fill it. And fill it we did. The first ship was the more hedonistic. They loved any they pleased. But the second had committed relationships of every kind, Gay, Lesbian, Trans and things presently unimagined.
We slipped the surly bonds of Earth, and of the Sun. We ventured beyond the Milky Way, and Andromeda galaxies and then out of the Local Group. Further we left the Virgo Supercluster of galaxies. And then the larger Laniakea Supercluster. We crossed vast stretches of space, great galaxies and enormous voids. We saw black holes, and super red giants. White dwarfs and blue supergiants.
That is the first thing you learn about navigating the stars. It is rarely where you are at that is the problem. It is where you are headed.
Tachyon field collapse means distance is easy. Too easy. A billion light years in a matter of a day. And we spent years in travel. But finding your way back can be tricky, if not impossible. Not that we cared.
The other thing is,
We did not understand, that if sex is the most important thing, the greatest good, that that leads to some dark places. If pleasure is what is important, a great many other things are not. A lake that only receives but never sacrifices its own water, quickly becomes a dead sea.
We did not so much underestimate our sins, as we did their consequences. The problem was not so much our sins themselves. It was the direction they set us on.
“a horror and a corruption such as you now meet, if at all, only in a nightmare… Immortal horrors”
Write as a chiasmus, lost in space, lost morally
I once read that we were eggs. And that we must hatch or go bad. We truly had no conception of what bad meant.