The problem with the AI Box Experiment is that the text doesn't correlate with reality - you can't hit me with the full emotional force of "here's the recipe for human immortality" because you don't have that recipe.
Also, given some people are illiterate, I'd posit that there's at LEAST one person immune to ANY string of characters. If this is a desired trait, then a rationally-trained scientist ought to be able to do at least as well as an untrained illiterate 3-year-old :)
at least as well as an untrained illiterate 3-year-old :)
Here is a way to overcome the illiteracy issue for communication over a text-only channel: ASCII art. Took my lazy and pretty average mind all of 10 seconds to come up with it. And to the AI in question all humans are basically illiterate 3-year-olds. We won't know what hit us. Also, I cannot resist bringing up this piece of fictional evidence.
Update 2013-09-05.
I have since played two more AI box experiments after this one, winning both.
Update 2013-12-30:
I have lost two more AI box experiments, and won two more. Current Record is 3 Wins, 3 Losses.