- last post: 01.01.0001 12:00 AM PDT
7 and 12 are considered "perfect numbers." this goes back to the bible, IIRC.
i'm going to take a guess and say that's why 13 is considered unlucky: by adding one more, its ruined 12, the perfect number.
::then begins to research the topic::
"The root of the name of the Number Seven means Perfect, Complete, or Satisfied."
- http://www.biblewheel.com/Topics/Seven.asp
"This number has been called the symbol of perfection, and also the symbol of rest." -http://dictionary.reference.com/search?q=seven
hey cool, look what the internet can tell us! lol.
now why Bungie grabbed the number seven so early on, and has been obsessed with it ever since? Well, they've always been obsessed with great stories filled with metaphors, allusions, and generally saturated with meaning. It just wouldn't be right if they didn't also throw some references using the number 7. Certainly if it was good enough for the Bible to throw it around nilly willy, why not them as well? And it became sort of an inside joke that grew and grew.
at least that's my guess. only they could really answer that question ;).
-Jäger