1. The limit values for the Monte Carlo/development distance modelling must be assumed since it is not possible to know which parameters values will actually be achieved in the future. The choice of limit values affects the development distance: choosing very optimistic limit values, for example, makes models with intermediate values appear at shorter development distances. This means that comparing the development distance values for different technologies is only valid if the limit values for each are equally "difficult" to achieve. As this notion is challenging to quantify, the development distance should always be seen in the context of the underlying base and limit values, especially when comparing technologies. Importantly, however, the choice of limit values does not affect the analysis of the required parameter values to achieve a given cost target. In this case, the limit values only determine which part of the parameter space is explored.