Originally Posted by
CoffeeGrunt
I didn't mean happy as in they skipped through the Warp on rainbow bridges to seek the Gumdrop Planet. I meant happy for 40K, which is standard issue for most Sci-fi. Mankind probably fought several wars for its existence against other small Xenos factions, claimed land and slowly learned the art of void warfare and travel, terraformation, and the other things which make a prosperous multi-system empire.
The way it's typically presented is that Mankind gets together for the most part, not ideal Collectivism but more the usual Us vs Them deal. Science is supported and lauded, utilised to its fullest to progress the evolution of their empire.
Most of all, Mankind is egotistical in that even now, hell even on this board, we have a belief that we'll win all the fights, make peace or war with adversaries, and be a big boy empire sprawling across greater amounts of space than a singular human mind can comprehend. The DAoT humanity would probably feel the same, buoyed by the fact that they're out there with the technology and presence to do it now. I personally don't believe that belief in how special we are, and our Manifest Destiny would ever die. Hell, in the 41st Millennium it's the only thing most of humanity has left to hold onto.
So yeah, maybe not perfect Collectivism like the Tau, but the atheistic and scientific approach, the somewhat naive sense of purpose and destiny, I can see that being a trait of humanity. Eldar would be interesting in that setting though. They'd ultimately be gods, and I wonder how the Orks would be as well. Perhaps there could be proto-Dark Eldar, maybe set it at the tipping point, with Psykers appearing, Daemons breaking into Realspace, and the Fall already past the event horizon towards damnation...