The tribal humans biggest difference from current humans is their increased sentimentality compared to ours. We have lost much of that human touch in our lives and societies while they rediscovered and retain theirs. Its a common trait that you will see in the friends that Aloy made in her journey and what bind them together no matter how different they are in order to walk and complete a common goal. That is what we have always talk about but seldom see in our lives. The light of the human spirit.