MG Sigler wrote about Live Photos.

It’s no accident that people with children immediately realize the value in this feature. With each passing day they see their children growing up in front of their eyes in ways that those of us without children can’t quite comprehend. To you and I, time passes slowly and people age slowly. Children morph from day to day. And so having a live look-back at your child even a few days removed is immensely valuable and meaningful.

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Yes, anyone could just take a video of their loved ones and it would be an actual live look back into their lives. But most people aren’t very good at taking video. They take footage that’s way too long. Or it’s staged. Or they miss things. With Live Photos, Apple figured out a rather ingenious solution to all of those things in a nice, tight picture package. It’s brilliant.