
Personal Voice is perhaps the most interesting and unsettling feature of iOS 17. It lets you train a voice model manually. A friend or family member, or a version of your own voice, can be used as the part-time steward of your iOS experience.
Bit weird, right? However, in a world of countless seemingly opaque AI implementations, Personal Voice is a rare example of machine learning where you can experience how these things are made. But it's also a great accessibility feature for those who may have speech impediments.