> * We are a genesis project and they will simply come back later and settle in what we left behind (i.e. they let the ecosystem build for a few million years b

> * We are a genesis project and they will simply come back later and settle in what we left behind (i.e. they let the ecosystem build for a few million years before trying out this settlement) Depressing fiction idea: our progenitors return, look at what we've done with the world, shake their heads and leave us to suffer.