I dont know what it means but in this picture are trees !



Were there ever any plants in the megastructure ??

Maybe its symbolic for a better life in the megastructure after the disaster has been overcome.

Before making insane theories you may want to consider this : the english translation may not be accurate.

Here is what the french edition (edited by Glenat, translated by Vincent Zouzoulkovsky) writes :

Cibo : Has it (the elevator) ever been used by humans ?
Elevator operator : As far as I know, no. Is that a problem ?

It doesn't says that the elevator has been used just once, it says that it has not been used by humans before. Quite different...
Can a german (or any other language) fan tell us what their translation said ? It's at the end of blame 6.

In Italian says the same, as above.
"as far as I know, no... is there something that interests you?"

From what I got of Blame! is that there are different dimensions that tend to go in and out of each other.
Perhaps in one dimension a Killy did go through there on the exact same quest to find the genes... and now that it changed once more, the current Killy did.

Or perhaps time just loops, like... Seven Monkeys.

Killy is doomed to repeat his exact steps in a world that is going forward, he is stuck in the same time line.

But I would probably go with different times, space, dimensions fusing together then separating again.

What other Killy?

=/ i hope that in the english translations arent more things as like that... what more is different as this to give us wrong basis?