The human eye, sperm, fetus, and nervous system were parasite monsters that crash landed on a meteorite that the human body defeated and assimilated

"The eye to this day gives me a cold shudder," Charles Darwin once wrote to a friend. Nobody can explain how the human eye evolved into its current shape and form. It just sort of… appeared. I have an explanation and it's as close to Borg origin story as you can imagine.

A curious thing about the human eye is that it has something called "immune privilege," which means the immune system won't attack it. At first glance, that doesn't seem that big of a deal, until you realize that the immune system attacks foreign bodies, like bacteria, viruses, and… parasites. Why would an eye be treated as a parasite? That makes zero sense, unless it was actually one at some point in time.

There are other parts of the human body that have immune privilege:

• testicles
• placenta
• fetus
• central nervous system

Sperm is a really wonky thing. When sperm cells enter a woman's vagina, they basically cause an infection in her and her immune system tries to kill them off. When the vagina gets repeatedly overloaded with sperm, her immune system gets overwhelmed, they invade her ovaries and "infect" her egg, at which point she gets pregnant.

Both testicles and ovaries produce horniness hormones, which means humans are controlled by their parasites to seek each other out, spread the "infection" further, feel good about it, and produce more parasite carriers. So, the sperm and egg parasite exists in two halves that seek each other out.

That reminds me of one type of parasite called Trematoda that changes shape and form as it goes through hosts and needs at least two hosts to continue its life cycle, go read up on it.

The fetus is also ignored by the immune system, again, like a parasite, and it kind of is (feeds off of its host without giving anything back and even has a specialized placenta, which is again spared of the immune system, and a specialized feeding tube).

Finally, the central nervous system is also ignored by the immune system, which according to my theory means it was once some sort of spaghetti monster that attached to living beings. It attached to proto-humans, who defeated it and assimilated it into their bodies, and they became capable of feeling things, such as anxiety, joy, and melancholy.

In conclusion, humans were once so primitive that they didn't even have eyes and had a basic nervous system, and it's only after defeating and assimilating some sort of parasites that they evolved into modern humans.

The logical question is, "Where are those parasites now?" Well, they might have been alien to our planet, so their lifespan in our atmosphere was very short.

We're told that dinosaurs were wiped out by meteorites crashing into Earth some 66 million years ago, at which point new forms of life suddenly came to be. What if that extinction event was caused not by meteorite impacts but by parasites riding those meteorites? What if we're about to have it happen again and whoever survives it will evolve to get new organs?

Would you allow an alien parasite to attach to you if it meant you might get new organs and new powers?