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Richard Harrington's avatar

> I can’t account for the flight of birds - how can their muscles be strong enough to lift them up but light enough not to weigh them down?

It's bats that really freak me out. I mean, they can fly too, and they're our cousins! Also they can change the shape of their ears three times faster than we can blink.

> I can’t account for my own sense of impatience. Obviously other minds are more systematic and committed than mine - that’s the only way things get done. So why is mine so different?

You think so? From my perspective, you get a lot done. I think literally everyone is pretty scattered.

> I can’t account for cellular growth in plants - animals I get, they eat things and the food turns into mass, but plants, with their water and CO2 and sunlight, it just doesn’t add up...

99.5% of a plant's mass consists of carbon, oxygen, and hydrogen, all of which it can get from water and air, and convert to useful forms like glucose with the help of the sun. The remaining 0.5% is absorbed from soil, but plants grow pretty slowly, and soil in the wild is replenished by the bodies of plants and pieces of plants, and by the bodies of the animals who directly or indirectly eat them. Soil in farms that don't make use of intensive crop rotation techniques and fallow periods is replenished by chemicals supplied by humans; mostly nitrogen, phosphorus and potassium. Otherwise those farms could not exist.

Some of this I just googled, and the rest of it is shit I'm making up, but I estimate that there's a 96% chance it's all correct. (My favorite sentence from the googling: "Silicon is only absolutely required by horsetails, but many other plant species contain silicon and benefit from its presence.")

> I can’t account for my nightly dreams of gigantic labyrinthine buildings...

Oh man, have you read Piranesi, by Susanna Clarke? It's a perfect book.

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Matthew Freeman's avatar

I love this piece.

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