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Here are some examples of introspective free will and some
considerations. They need to be represented in logic so that a robot
could use them to learn from its past and plan its future.
- Did I make the wrong decision just now? Can I reverse it?
- ``Yesterday I could have made my reservation and got a cheap fare.''
- ``Next year I can apply to any university in the country. I
don't need to make up my mind now.''.
- ``If I haven't studied calculus, I will be unable to take
differential equations.''
- ``If I learn to program computers, I will have more choice of
occupation.''
- ``It is better to have an increased set of choices.''
- ``I am not allowed to harm human beings.'' Asimov imagined his
three laws of robotics, of which this is one, as built into his
imaginary positronic brains. In his numerous science fiction
stories, the robots treated them as though engraved on tablets and
requiring interpretation. This is necessary, because the robots did
have to imagine their choices and their consequences.
- Some of a person's behavior is controlled by reflexes and other
automatic mechanisms. We rightly regard reflexive actions as not
being deliberate and are always trying to get better control of
them.
- The coach helps the baseball player analyze how he swings at
the ball and helps him improve the reflexive actions involved.
- I'm a sucker for knight forks and for redheads and need to
think more in such chess and social situations.
- In the introduction I wrote
What kind of an entity is x? In situation calculus, the simplest
operand of can is a situation as treated above, but also we can
consider an action itself or a propositional fluent. A propositional
fluent p is a predicate taking a situation argument, and an agent
can reason that it can (or cannot) bring about a future situation in
which p holds.
[McCarthy 1996] includes an extensive discussion of what consciousness,
including consciousness of self, will be required for robots.
Next: Conclusions
Up: Formalism for introspective free
Previous: A minimal example of
John McCarthy
Sun Nov 21 23:39:43 PST 1999