“Electricity in remote Bangladesh is rare, but we didn't need it. We had human energy, and people were happy to have the work. Tools were an issue too, but we had... water buffaloes. We had also tried it with cows, but interestingly, they were too intelligent. They were always stepping in the holes of the previous round. They wouldn't mix the mud, the {{w|straw}}, the sand, which are the ingredients in the walls.”