SUMMARY
A definition of technological pluralism and diversity is presented, together with a concept of viability, within the context of sustainable development. The existing contrast with technological homogeneity is also discussed in order to show that the former concept is a necessary prerequisite for the pursuit of sustainability, whereas the latter has led to a process of cultural homogenisation, with the generally acknowledged repercussions for past and present forms of development. The availability of a number of different viable options can be considered a fundamental prerequisite for the most appropriate choice to be made by both producers and consumers; whereas, if only one technical solution is available and ready to be implemented (or requires only marginal modifications), then producers from the various socioeconomic sectors are obliged to implement that solution. This may sometimes have its advantages but very often will have serious drawbacks which may well impede the pursuit of sustainability.
The question of the current form of product diversification is also analysed to see whether it may be advantageous within a sustainable society, and to discover if there is any contrast between this type of diversification and technological pluralism/diversity, and how this contrast may be overcome.