Neanderthals had a very primitive society and built their houses out of mud with grass roofs or lived among themselves in earthen caves or structures with structures of sore logs covered with animal skins. The buildings and such construction methods were very limiting. We are not sure what life was like an age ago. I think in the end it could be an even match. I can't decide whether it's worse to propagate 10,000 BC as a theory of evolution, or to propagate intelligent design as a theory of evolution. Also, what was happening in the world 10,000 years ago? This is where you know everything is extremely sketchy in the movie, but you find yourself in a forgiving frame of mind because the action is so awesome and the concept design is entertaining at best. 10,000 BC was actually historically inaccurate but fun