 was saying that there were about 20,000 of these stone ruins in Southern Africa. 20,000? 20,000 is not a small number. No. It's not a small number. I was already quite surprised. But if I just go back a little bit to Theodore Bent in the early 1900s, when he wrote his famous book that is just a treasure to have if you have one, it's probably worth a fortune right now.