22nd April 2005, 1:54 PM
Paranoia, not wanting people to actually be able to ever figure out the truth, or he really wanted people to try to figure out his impossible puzzle (if in two years no one has figured out that there even IS a puzzle (and once they figure out there is one they cannot get beyond the recognition "okay, perhaps there is a puzzle, but we have no further information"), it's impossible. :)). One of those three things.