Idea 12 in 2019: Mobcast

Do you remember that game where a group of friends sits in a circle, someone starts a story and then passes it to the next person and everyone tells a small part and you see if you can build it into something fun or weird or whatever? Imagine that but on your phone. You could listen to a story told by dozens (or hundreds?) of people and when you get to the end you can add your own thirty seconds. Bad ones would die naturally. “Good” ones would go on… forever?