the unit scale frontier of nuclear power increased fivefold in the decade that followed commissioning of the first mw commercial reactor in ultimately these rapid increases in unit size were a contributing factor to the rising complexity that created diseconomies of scale and constrained further growth of the industry in the late s lovins et al in many cases learning is facilitated by relationships between industry actors supported by public investments in for example testing infrastructure to ensure experiences feed back into subsequent designs garud and karnoe when this policysupported process of collective learning is absent the development of viable domestic technological capability and industry can fail neij and andersen