Anyways, yes – “scientism” (and in particular Vlad’s personal re-definition of it) is used as a point of attack. For those who would claim ultimate, foundational truths (if such people exist at all) that would have some merit, but for the most part the very provisionality of scientific theories tells you that the charge is misplaced.
Sure - but I think that Vlad is also confusing science with the original discussion which was about the distinction between natural and supernatural.
So lets take an example - music. Sure science can explain exactly how music 'works' in terms of vibrational energy. Further it can tell us how we perceive music in a physiological manner - auditory function, nerve stimulation etc. It can even measure aspects of the emotional response, through measuring brain activity, endorphin release. What it struggles to do is to measure the importance music has to individuals, even if can measure aspects of the physiology - why because that importance is subjective and human specific.
So science can tell me why I feel in a particular way when I listen to a piece of music, physiologically, but that isn't really the important thing to me - what is important are the emotional effects on me.
So there are areas of emotion, philosophy, morality etc why lie beyond the useful realms of science.
But, and here is the important but - just because there are aspect of listening to music which are more importantly described outside of the sphere of science doesn't mean that music is somehow outside of the natural physical laws. Quite the opposite music is very obviously governed by those physical laws. So the importance of music may lie outside of the world of science, but music remains very much of the natural not the supernatural.
I think Vlad wants to confuse the two - somehow implying that because science doesn't tell us everything and because science is about the natural physical laws, then there must be things which are outside of those natural physical laws, i.e. supernatural. That, as with so much of vlad's arguments, is muddled thinking.