Why Aliens WOULDN’T Invade Earth…

As a science-fiction writer, a guy who’s written–mostly from a skeptical viewpoint–about UFOs, and a person with a general interest in the cosmos, I sometimes wonder how things would play out if we were visited by extraterrestrials. Would they be benevolent? Or would it be like the pre-Columbian tribes facing sickness and enslavement from Columbus and Cortez? Would it be like “Independence Day”–an all out war? An invasion?

For the first time, it occurred to me today that they probably would not invade us. Invasion presumably takes a great deal of energy and commitment of resources. If they use some form of money, it’d take that too. It might take a punishingly large amount of energy, personnel, resources, and sheer risk to cross the vast stretch of interstellar light years with the aim of prosecuting an invasion of Earth. Even if they have some faster-than-light or wormhole traversing system, some subspace warpdrive that can get them and their resources here rather handily, they’d still be taking a major risk. They’d have to think about our bacteria, or viruses, which might be enough to defeat them unless they have some universal immunity biotech developed. Even if they have sufficient protection–invasion condoms, so to speak–they would have to have a lot of confidence that their weapons outstripped ours. Maybe they would be more powerfully weaponized, but a race that’s gotten to the moon and back is pretty flexible and resourceful and quick-witted. We might come up with something effective. And nuclear weapons, while crude, might actually be powerful enough to be an interstellar deterrent.

But there’s another consideration–do we have anything they want that badly? The chances are, their own biology is singular to their world. Probably our atmosphere would not suit them; probably our (rather damaged) biosphere would not be suitable either. They would likely have a whole different set of biological needs. They’d be better served to alter some suitable raw lifeless planet to fit their needs. If they flourish in methane, they’d seek a methane rich planet and modify it for their purposes. So much easier than an invasion.

The final consideration is, if they’re smart enough to get here they’re intelligent enough to know that we are worthy of study; they’d know that–even if we’re more primitive than they in some respects–we may have something to offer that would repay them more than an invasion would…

Finally, we come to the conclusion–it just wouldn’t pay to invade Earth…

Tags: , , ,

Comments are closed.