Them. We’re clearing AI development hurdles like a decathlon athlete. Every time we hit a new threshold, we’re soon bounding over the next. At this week’s Google I/O developer conference, I saw a stunning demonstration of AI, machine learning, natural language processing, and voice synthesis. Called Duplex, it’s Google’s experimental voice assistant that goes way beyond “Hey Google” call response to full-on conversation. There are limits to what Duplex can do, but I believe the introduction of Duplex marks a major turning point in the development of computer voice companions.