The young girl on TV is shown at the moment of realization. Run away, run! she had been shouting at the wounded hairy thing as it foundered & went down in a circle of men with spears, & now she is turning a heartbroken face to the cameras from the future, she is calling down destruction on her own kind, because we did not see as clearly as she did that these too were people. She is saying, when the last of the others has been killed, there will be no one left on earth. How can you live without dreams? She is saying, we are all others after dark.