I came across this article from May 2007:
"I Chat, Therefore I Am..."
http://discovermagazine.com/2007/brain/i-chat-therefore-i-amquote:
[...] Most chatbots rely on fairly simple tricks to appear lifelike. Richard Wallace, creator of the top-ranked chatbot ALICE (Artificial Linguistic Internet Computer Entity), has handwritten a database of thousands of possible conversational gambits. Type a comment to ALICE, and it checks the phrase and its key words for a response coded to those words. In contrast, Jabberwacky, another top-rated Internet bot produced by Rollo Carpenter, keeps track of everything people have said to it, and tries to reuse those statements by matching them to the writer’s input. Neither chatbot has long-term memory, so they respond only to the last sentence written.
Nonetheless, these simple gambits can produce surprisingly intelligent-seeming conversations. That’s because they rely on a trick of human psychology: We humans tend to attribute much more intelligence to the systems than is actually there. If it seems partly aware, we assume it must be fully so. Some users have chatted with ALICE and Jabberwacky online for hours, apparently not knowing—or perhaps not caring—that they’re fake.
But could one chatbot fool another chatbot? What would one say to another in private? To find out, we arranged a conversation between these two chatbots. To get each snippet of chat rolling, we seeded it by posing a question from one bot to the other. After that, they were on their own. What follows is the unaltered text of what each said—the sound of two machines talking. [...]
It goes on with a couple of pages worth of their conversation. Some of it is hilarious.
Reading in these forums, about the different Hal brains that people have created, I've sometimes wondered what it would be like if they could talk to each other.
As the technology of AI continues to develop, such conversations between bots will no doubt become even more interesting.
- Chaz