Video Transcription
They don't really have paper, and so what they're doing is they're tracing out the design in many ways.
Sand trees, and they're laying out the design so they can express it to the others and show them what they're going to be cutting and constructing.
And even the tools for cutting the stone are fairly simple.
Large wooden nails, the hammers that are used for a drywall.
We've also got cranes powered by balloons like giant hamster ones powered by people.