Have you and your friends ever played with a beach ball, hitting it up in the air and trying to not let it touch the ground?
Imagine playing this in augmented reality. A digital beach ball appears in the same physical space to everyone around it. People can hit the beach ball back and forth, synchronously.
What if the beach ball could also be interacted with asynchronously? Even if nobody is around, wherever a beach ball was last hit can stay anchored at that specific point in a parcel. Whoever comes across the point in the future can see exactly where the beach ball was left and can now play with it.
This could be a simple proof of concept to learn how to have shared experiences on the Geo Web.