Part 1: Biology
I wrote a few weeks ago about movie aliens, about which ones were scary and which ones weren’t.
A colonist from ‘X-Files’: not scary.
My thesis was that movie aliens don’t achieve scariness unless they first achieve un-humanity. Humanoid aliens aren’t only uniformly unfrightening, they are also products of intellectual and creative laziness, and we should stop making movies about them.
Who cares? Movies, famously, little resemble real life – that’s part of why we watch them. Aliens, at least so far, don’t figure in real life at all, so why am I so upset about how they appear in movies?
For two reasons. The first, let’s call ‘Biology’. The second, about which more next week, we’ll call ‘Fear Learning’.
Put simply, the evolutionary thinking behind humanoid aliens is, well, nonexistent.
It’s a safe assumption that whatever planet aliens evolve on will be, in some way or another, different than Earth. It may be bigger or smaller, and therefore exert greater or lesser gravitational force. The chemical composition of the atmosphere may different. It may be further away from or closer to a big star, which would change the amount of heat or light the surface of the planet gets. Whatever the difference, the environmental conditions on this alien planet aren’t going to be identical to the environmental conditions here on Earth. Therefore, the chances that an alien species would evolve to exactly resemble human are slim indeed.
Even if we hew religiously to the anthropic principle, that the universe is necessarily conducive to the evolution of life like ours (as evidenced by our life), the odds are overwhelming that extraterrestrials won’t look like us. Even if we accept the common hand-wave, that aliens have come to to disrupt our planet because it is so like their own, it is still unlikely that they will look like us.
Look around. All life on Earth evolved under Earth-like conditions (obviously), and very few of our fellow-earthlings look like us. In fact, there really aren’t any animals that look as much like humans as the aliens from ‘Signs’ do. Honestly, which do you more closely resemble, the little green men from the X-Files, or a gorilla? Tell the truth – it’s a close call. And if other humanoids haven’t evolved here on Earth, what are the odds that they evolved somewhere else?
The idea that interstellar aliens, even if they evolved under similar conditions, would be cephalated, binocular, bipedal, and hairless, is preposterous. To portray them thusly is so lazy, requires so little mental effort, as to be offensive. We probably aren’t going to guess accurately how the aliens we meet, if we ever do, will look, but we should at least try.