The impact of the new SI in the measurement sector

Recent changes to the world's measurement system [1], [2] have been carefully designed to appear to the general public, and even to most of the scientific community, as if nothing substantial has changed. The same units exist, no new ones have been created, and the values of the properties of physical artifacts remain the same for all but the most extreme accuracies. In fact, only the definitions of the seven base units have been altered while keeping their sizes virtually unchanged. And so it might appear that these changes to our measurement system are simply a bit of tidying up and of no practical consequence to any except those few metrologists responsible for realizing and maintaining the measurement system at its highest levels of accuracy and precision.