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Psychology professor Bertram Malle researches “social cognition,” a blend of psychology and neuroscience that examines how people behave in social situations. He is part of a team of researchers attempting to train robots to make moral decisions, arguing that as robots take over more human tasks, they need at least some “moral competence.”


BAM In what situations are robots faced with moral decisions?
MALLE Even just partly autonomous robots will quickly get into situations that require moral considerations. For example, which faintly crying voice from the earthquake rubble should the rescue robot follow: the child’s or the older adult’s? What should a medical robot do when a cancer patient begs for more morphine but the supervisory doctor is not reachable to approve the request? Should a self-driving car prevent its owner from taking over manual driving when the owner is drunk but needs to get his seizuring child to the hospital?

BAM How do you even go about a project like this?
MALLE We are beginning to formalize a cognitive theory of blame amenable to computational implementation. And recently we have started to take this cognitive theory of blame into the social domain, asking when, how, and for what purposes people express moral criticism—blaming your friend for stealing a shirt from the department store, for example.

BAM Human morality reduced to a single algorithm or formula?
MALLE It’s a grave mistake to think of human moral competence as one thing. It would be just as grave a mistake to build a single moral module in a robot. Things are beautifully complex when we deal with the human mind. We should expect no less of the robot mind.

BAM What would you say to people who might be a bit unnerved by the idea of moral robots?
MALLE Consider the alternative: A robot that takes care of your ailing mother and has no idea about basic norms of politeness, respect, autonomy, and has no capacity to make a difficult decision—such as in my example of dispensing urgently needed pain medication even though the doctor in charge is not reachable. “Morality” has long been considered unique to humans. But if we build robots that interact with humans and that have increasing decision capacity, impact, and duties of care, there is no alternative to creating “moral” robots. Keeping robots amoral would simply be unethical.

Illustration by Timothy Cook. 

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