The sad fact of the human condition is that we seem preprogrammed for violence. Human history has shown that we are our own worst enemy and even through our creative endeavours in film and literature our violence shows through. We fear aliens will come and invade our planet, unable to co-exist because that is exactly what humans are like. We cannot conceive that foreign species might be friendly or have a culture based on sharing. Even thinking of aliens creates the categories of “us” versus “them”. We cannot understand the universe without predetermined boxes to fit brings into. We’re sick.