As kind of a quick guess today, I thought to myself "Maybe Blockladder was a hitchhiker's guide to the galaxy fan". After all, 21*2=42, the answer to life, the universe, and everything. Turns out in ISO/IEC 14519-2001/ IEEE Std 1003.5-1999, IEEE Standard for Information Technology – POSIX(R) Ada Language Interfaces – Part 1: Binding for System Application Program Interface (API), "The Choice Of The Value 42 Is Arbitrary", a phrase which, when spaces are removed, = 8 words and 32 characters. I changed 42 to 21 and no dice. "TheChoiceOfTheValue21IsArbitrary" doesn't work as a brainwallet or through my Python hashing method. *SHRUG*

Just thought you all might get some out-of-the-box inspiration!

Oh and *edit* if that wasn't enough THE SUM OF ALL FACTORS OF 21 IS 32! Not that that probably means anything.