Every day, millions of people start the day by posting a greeting on social media. None of them expect to be arrested for their friendly morning ritual.
But that’s exactly what happened to a Palestinian construction worker in 2017, when the caption “يصبحهم” (“good morning”) on his Facebook selfie was auto-translated as “attack them.”
A human Arabic speaker would have immediately recognized “يصبحهم” as an informal way to say “good morning”. Not so AI. Machines are notoriously bad at dealing with variation, a key characteristic of all human languages.
