Literally, until we have ate up every single acre of land, we will not be satisfied!
And do you know what happens then?
Yup - We struggle. We compete. We kill. We wipe out our entire spieces.
OR. Maybe, by evolution, we'll create a master speices (how do you spell that!?)
And then they'll die too.
Just lettin' ya know your future, and your great, great, great, great grandchildren's. (add a few more greats.)