What about graffiti and other transient 3D environments?

Every year I (try to) travel to Sau Paulo, Brazil. In part because of the powerful street art community there. In Brazil, places like Beco Do Batman are basically never the same place twice, as artists constantly change what is on the walls. There are many outdoor spaces that will not be the same twice. Halloween displays are very different in the middle of the night and the middle of the day.

Generally, how is your platform going to handle content that is transient and changing? Will there be a “way back machine” for 3d space here?