The ‘decay of a dome’ installation by Wang Shu, Vito Bertin, Lu Wen Yu of amateur architecture studio from china is a very light structure, with a shape similar to the dome of western buildings, but its construction principle is also like those of traditional Chinese buildings. It does not need a base, so the construction does not damage the ground. it contains the least components and the simplest construction principles. It can be both quickly constructed and dismantled. Therefore it is also easy to move. though the construction will needed many hands – a group of people to assemble – even those who know little about architecture can participate. the rational construction becomes a nastic construction.