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Contrary to popular perception, math is filled with character. Numbers often seem to have personality, different fields are characterized as much by their style as by their content, and mathematicians themselves are often more enthusiastic about the beauty of their subject than artists. On 3b1b, the pi creature has come to be a symbol of this unappreciated emotive quality in math, and the plushie pi and pi neck pillow is your chance to hold physical reminders of this fact.