Rock Gym Dry Tooling - Dry Ice

I know, it's weird. Two posts in one day. But I came across this interesting video and website and figured readers would be keen. The video and pictures tell the tale so I won't say much else. But the folks at Furnace Industries have come up with an interesting idea for indoor training. I know ice climbers who have set up gyms in barns and such using bolt hangers for holds and using their actual ice tools. This works fine. But this product seems to open up a huge expanse of training opportunity in commercial climbing gyms. Intriguing.