Another XKCD — just for fun
I don't know if this is true for everyone, but it certainly holds true for me.
(Neil Gaiman wrote the novel on which the film "Stardust" was based; he also wrote a book called "Neverwhere", a story about the mystical realm known as "London Below".)
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Ha...I just noticed the warning label on this site. It reads:
Warning: this comic occasionally contains strong language (which may be unsuitable for children), unusual humor (which may be unsuitable for adults), and advanced mathematics (which may be unsuitable for liberal-arts majors).
I love it.