The Turing Test and what makes us human

Each year, the Loebner Prize competition takes place where judges are asked to interact through computer terminals with humans and computer programs. The judges then vote on whether they were talking with a human or a computer in this version of the Turing Test.

Two things struck me in this article:

1. The writer frames this issue of “mind vs. machine” as a more fundamental question about what separates humans from other animals:

Philosophers, psychologists, and scientists have been puzzling over the essential definition of human uniqueness since the beginning of recorded history. The Harvard psychologist Daniel Gilbert says that every psychologist must, at some point in his or her career, write a version of what he calls “The Sentence.” Specifically, The Sentence reads like this:

The human being is the only animal that ______.The story of humans’ sense of self is, you might say, the story of failed, debunked versions of The Sentence. Except now it’s not just the animals that we’re worried about.

We once thought humans were unique for using language, but this seems less certain each year; we once thought humans were unique for using tools, but this claim also erodes with ongoing animal-behavior research; we once thought humans were unique for being able to do mathematics, and now we can barely imagine being able to do what our calculators can.

If this is the case, then the Turing Test, or Ken Jenning’s battle with a computer on Jeopardy!, become the final battleground as humans lose what we thought made us distinct: thinking or reasoning. But this quick definition of human selfhood seems to leave out a very important component: the human search for meaning. Sociologists, like Peter Berger, have talked about this for decades in order to help explain the prevalence of religion. Berger argued that religions arise because people have enduring questions about why the world is the way it is and what their place is in it. Do other animals pose such existential questions? Is spirituality or religiosity what might really separate humans from other animals?

2. As the writer explains his strategy for showing the judges that he is human, he recounts past conversations computer programs have had with humans. Several of these were quite interesting. One program from the 1960s, Eliza, took a more therapeutic approach to dealing with humans:

User: Men are all alike.

Eliza: In what way?

User: They’re always bugging us about something or other.

Eliza: Can you think of a specific example?

User: Well, my boyfriend made me come here.

Eliza: Your boyfriend made you come here.

User: He says I’m depressed much of the time.

Eliza: I am sorry to hear you are depressed.

User: It’s true. I am unhappy.

Eliza: Do you think coming here will help you not to be unhappy?

User: I need some help, that much seems certain.

Eliza: What would it mean to you if you got some help?

User: Perhaps I could learn to get along with my mother.

Eliza: Tell me more about your family.

This program was apparently quite effective in fooling people and some even went off to have therapeutic conversations with this program. Another program acted belligerent at random points and threw some people off.

It sounds like these computer programs will continue to get more sophisticated.

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