Camera Restricta is a speculative design of a new kind of camera. It locates itself via GPS and searches online for photos that have been geotagged nearby. If the camera decides that too many photos have been taken at your location, it retracts the shutter and blocks the viewfinder. You can't take any more pictures here.
When I go to a concert (lol, like that's a thing I still do) and I see hundreds of cameraphones shooting up to take a photo of the lead singer, I wonder: what's the point of that? There's nothing tying you to that photo. Anyone could have taken it, so why not just go into Twitter or something and grab someone else's photo? Maybe even someone shooting with better equipment than you?
I don't think the Camera Restricta will catch on. People care too much about their fitness selfies. But I still love the idea of it.