Such is the complexity of natural human language, it took the loveable eco-friendly but rusty droid character WALL-E more than 700 years on this planet to develop intelligible human language. That’s because there’s unstructured data to contend with as well as formal rules that have too many exceptions (I’m looking at you I before E expect before C). Ripe with nuances, real-world context, and sometimes unfortunate double meanings, natural human language has been near impossible for computers to understand and mimic in a way that truly makes sense.