ction of the potential market for ultrawideband devices through a standards dispute is one example. 21.11 The Need for a Common Language Value can also be destroyed through misunderstanding and poor advocacy. Poor advocacy can be particularly expensive if the result is decision making based on inaccurate or incomplete or poorly presented technical facts. As an antidote to this we recommend a short consideration of the work of Dr Ludwig Zamenhof, founder of the Esperanto movement. Esperanto is often dismissed as a marginal curiosity with little relevance to the modern world. Dr Zamenhof had a minor planet named after him by Yro Vaisala, the Finnish astronomer and physicist, and is considered as a god by the Omoto religion. Aside from these distractions, his work on a universal language has real relevance to engineers and engineering. For example, the Chinese Academy of Science conducts a biannual international conference on Science and Technology in Esperanto and publishes a quarterly journal, 'Tutmondaj Sciencoj kaj Teknikoj'. However, we are not on a mission to preach the virtues of Esperanto to engineers. More specifically, Esperanto has practical relevance to our own area of interest, user equipment and network design. Esperanto is an example of a language that is both efficient and precise in the way that it describes the world around us. A language optimised for logical thought and analysis. For most of us, learning Esperanto is never going to be a high priority, even if it should be. We can, however, learn lessons from Esperanto in terms of how we approach decision making in network design. Decision making is dependent on the accuracy with which a specific problem or set of choices is described. We suggest a number of 'descriptive domains' that can be applied that help to clarify some of these choices. We show how 'descriptive domains' can be used to validate R and D resource allocation and partitioning and integration decisions. Future Trends, Forecasting, the Age of Adaptation and More Transformative Tran