Researchers used the "Cleverbot" for this test case, which is regarded as one of researchers' best attempts to mimic human conversation patterns with computer intelligence.

CNN: Robots aren't good at talking to themselves

But as this week's Cleverbot video showed, if you let a computer program talk to itself, there's probably not a human alive who would buy it.

CNN: Robots aren't good at talking to themselves

Cleverbot actually "learns" from the conversations it has as it has them, which is fairly impressive, as this episode of WNYC's "Radiolab" podcast discusses at great length.

CNN: Robots aren't good at talking to themselves