Possibly, although I guess it's trying to play off Ruby's Japanese connotations and the actual examples inside (slicing arrays containing peanut butter and jelly) are not particularly pretentious.
Edit: thanks zem: http://en.wikipedia.org/wiki/Hacker_koan
Edit2: and thanks angrycoder, I didn't spot that, although the point still stands that peanut butter is not overly pretentious
I think you are trying too hard. The most obvious influence is "The Little Schemer", right down to the peanut butter and jelly references. It is even listed as an inspiration on website.
not really, the koan has been enthusiastically adopted by the hacker community long before ruby came on the scene. i think this is more a continuation of that than any reference to ruby's japanese roots.
Edit: thanks zem: http://en.wikipedia.org/wiki/Hacker_koan Edit2: and thanks angrycoder, I didn't spot that, although the point still stands that peanut butter is not overly pretentious