A lesson of science ought-to-be that as soon as one assumes a distinction, a separation - it can never be overcome unless that assumption is removed.
For as long as the assumption lies-in-place (ignored, forgotten, undetected), a whole world of empirical investigation and hypothetical modelling cannot ever heal the breach made by that assumption.
The same applies to failure to acknowledge a distinction - when one has assumed that two are really one-and-the-same... A whole world of 'evidence' cannot break that assumed unity apart.
Yet one or the other is true - so we must know which!
