We. Love.
Symmetry. It's in our art, and architecture.
We even balance equations on it. Our love of symmetry makes sense, because we're symmetrical.
Two eyes, two ears, two arms, and two legs. Bodies that built like paper dolls.
But that outward beauty is superficial. Peel back the curtain, and that symmetry disappears.
Your guts are a mess. Unless you're from Gallifrey, you have one heart, on the left side of your body, same as your stomach and spleen, but your liver is on the right.
Even organs that look symmetrical at first seem to tip one way or the other. The right lung is divided into three lobes while the left lung has only two.
And in your brain, two areas that are needed for speech and language are found only on one lobe, usually the left. Animals as distantly related as starfish show similar internal asymmetry.
The interesting thing isn't that our bodies are asymmetrical in the first place, but that we all have the same asymmetry. Unless you have a case of oppositus. 1 in 20,000 people on Earth have a genetic condition called situs inversus, where the internal organs are inverted left to right.
These people usually show no negative effects from their reversed innards. Unless their name is Donny Osmond.
