I Compute Therefore I Am

BBC News Online / Sci-Tech

September 7, 1998

Everyone shouts at their computer. But in 40 years' time,
the computer could be answering you back.

A leading expert in artificial intelligence has predicted
that it is only a matter of time before computers will be
able to interact on a personal level and talk problems over
just like another human.

"In 40 years' time you'll be used to using conscious
computers and you wouldn't buy one unless it was conscious,"
said Professor Igor Aleksander, head of neural systems
engineering at Imperial College London.

Addressing the British Association Festival of Science at
Cardiff University, he continued: "It would probably use
language and be quite responsive to vision, so you could
show it things you're describing.

"The big change is that a conscious computer might answer a
problem by saying, `I see what you mean, but I think we
should do X, Y or Z'.

"It could conceivably disagree and argue with you. When a
computer starts using the word I in that context then we'll
know that it's fully conscious."

"At the moment you can buy a piece of software for Pound25 that
enables you to talk to a computer. It doesn't understand
anything, but one day it will," he said.

Neural Network

Professor Aleksander says he has already demonstrated a
degree of computer consciousness using a machine called
Magnus modelled on the neural network of the human brain.

The aim of the research is to give a computer an
understanding of its surroundings, with experimentation is
focused in the recall of sensory experience.

For example, the computer is shown a kitchen table and asked
to identify if there is a spoon present, and if so, how

Magnus has shown that to some extent it can feel the quality
of things, such as "redness" or "ballness" when visualising
a red ball.

Computing With Emotion

The prospect of conscious machines is a mainstay of many
science fiction films. Perhaps the most well-known is HAL,
the homicidal computer in the film 2001 A Space Odyssey.

Professor Aleksander said the ethical problem of "killing" a
conscious computer by switching it off would not arise. The
machine would not feel threatened by such action.

"A conscious computer would be so different from a conscious
living thing," said the professor.

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