I used to teach philosophy of nature (aka cosmology, natural philosophy, etc.) so I particularly appreciate this one.
*Warning: some of the other cartoons in the XKCD series may be offensive to some readers, but sometimes the author really hits it out of the park.
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About Matthew Green
I am a translator, origami artist/teacher, and photographer, a blogger, former philosophy professor, and I love to sing.
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on Fine Art America.
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Perpetual Learner 