https://www.duosecurity.com/authentication-methods
What? This exists...
21 karma · joined July 18, 2012
Further arguments include high overhead for learning (not to mention changing passwords) a given password, storage of passwords, and the idea that your password isn't summonable on demand.
He was a weird dude.
Source: http://en.wikipedia.org/wiki/Password_strength#Human-generat...
Conclusion: Interesting psychological experiment, not actually backed by any appreciable crypto knowledge.
Edit: disregard my NIST comment, someone linked the paper used to get the 38 bit figure, http://bojinov.org/professional/usenixsec2012-rubberhose.pdf.