" In a famous experiment conducted by NASA in the 1990s, researchers fed a variety of psychoactive substances to spiders to see how they would affect their web-making skills. The caffeinated spider spun a strangely cubist and utterly ineffective web, with oblique angles, openings big enough to let small birds through, and completely lacking in symmetry or a center. (The web was far more fanciful than the ones spun by spiders given cannabis or LSD.) "

― Michael Pollan , This Is Your Mind on Plants