The future of the web is visual and spatial (3D). To enable this, we need an invisible, machine readable mesh that covers the whole world, a 1:1 digital copy of the physical world, anchored precisely to it. This makes everything we see searchable and clickable. In the next ten years, this digital copy of the real world, a mirrorworld, could become the most valuable asset in computing. Big companies like Google and Apple are racing to build it, as are Snapchat and Niantic, who have their own approaches. This panel of experts in the field of computer vision share their insights into these mirrorworlds, and their critical role in turning our physical world into a visual, clickable web.