1. Zero risk and zero default

Constraint as a source of progress

Without going into the history of these terms, let's remember that even among Six Sigmas (*) enthusiasts, zero defects are relative! The same obviously applies to zero risk. We therefore see it as an objective to be approached as progress is made and requirements are met, in the same way as zero defects. This is how technological progress came about. Some scientists (and politicians) accept the concept of zero defects, but not that of zero risk. Looking at their refusal, it seems that they ultimately accept both concepts, but do not intend to be condemned on the basis of these principles of progress, which can only be voluntary and non-coercive.

This consideration is not anecdotal; by admitting that progress is often the fruit of constraint, it effectively highlights two sources...