When someone sees something that isn’t there, people often refer to the experience as a hallucination. Hallucinations^[1] occur when your sensory perception does not correspond to external stimuli.

Technologies that rely on artificial intelligence can have hallucinations, too.

When an algorithmic system generates information that seems plausible...

When bots – automated agents that perform tasks on behalf of humans – become more active in online communities, it has profound effects on how humans interact with each other on those platforms. Bots designed to help users see more content increase the number of people users connect with but also decrease the interactions between people....

When I taught research methods to undergraduates, I would start by asking whether anyone in the class had $20. Though harder to come by thanks to digital payment options, inevitably someone would produce a $20 bill. I would then ask whether they knew how the bill came to look the way it does. Students would take guesses – often rooted...