It is a rite of passage for any art student: the charcoal-smudged desk, the cramping wrist, and the maddening attempt to sketch one’s own left hand. To the untrained eye, a hand is a simple tool; to the artist, it is a nightmare of overlapping joints, foreshortened digits, and a thumb that stubbornly juts out like a broken bone. We assume we know what a hand looks like until we are forced to look closely. Today, artificial intelligence is failing that same high-school art assignment.