William Morder via trinity-users wrote:

> The only reason that humans didn't destroy the planet before now is
> because there was more planet than there were humans. They would use all
> the resources in a place, then move on, like herders whose animals have
> overgrazed.
> 
> Now there is no more space left, so humans are looking for new planets
> that will sustain life. And then they will try to go there, and do the
> same thing, again and again.

I was thinking of this, but came to the conclusion that they evolved and the
evolution made it possible combined with greed and evil forces - hence
Lucifer :)