It's good to see such concise parameters which rise to the top over many decades of experimentation & discovery.<p>Especially over such a long period of time, when the number of other considerations and variables gets much more overwhelming with each decade. It can be naturally difficult for even experts to see the forest for the trees, but an extra decade or two can be what it takes to climb above the canopy just enough to get a clear sight on what can not be perceived any other way.