Board Thread:Warhammer 40k General Discussion/@comment-25618639-20150604030859/@comment-118.211.25.79-20150606013543

Neithan02 wrote:

also if the outer threats are gone, you turn inwards... I believe you forget that the Tyranids came from another Galaxy, which means that once Humans become the dominant species in the Milky Way Galaxy, they can always go further, and find more enemies to do battle with, and more worlds to conquer.

It would take a long time to get rid of all of those outer threats if this was the case.