I stayed at Yangtsena yesterday. It’s a small village on the southern slopes of the Pu-la overlooking the Amochhu river. Yangtsena has only seven houses. But all of them are handsome, traditional farmhouses. It wasn’t always like that – just 14 years ago, they lived in basic bamboo huts. That’s about when, when Yangtsena’s residents got together and decided that they, all seven households, must have better houses. Individually, no family had the resources to build a farmhouse. So they decided to pool their resources, especially labour, and collectively build all of their houses, one farmhouse at a time.…