This article makes, first, a general argument for ‘sustainable policies.’ this argument will build on the observation that modern societies, of all political guise, find it difficult to cope with the challenges and opportunities posed by science and technology. Classical models of democracy do not seem to be sufficiently equipped to guide the political process in our highly developed societies. Second, this paper will discuss constructivist views on the development of technology in relation to society, and explore possible implications for democratization of technological culture. And finally, the article will present a particular case of experimentation with one alternative form of democracy. This experimental addendum to the existing political repertoires in the netherlands was a public debate about the issue of ‘nature development’ or ‘nature construction’—the making of new nature, for example by giving back some of the dutch land to the water of the rivers rhein and maas.