Are you saying that recordings individually are so unique and particular that that it’s impossible to make a judgement as to their realism? That making such a judgement is necessarily arbitrary? Could you elaborate?
Thanks.
Yes, a single judgement is forceful arbitrary for many reasons. First, sound engineers do not aim at absolute realism - just consider that the mastering engineer probably has not been present at the recording session. Stereo has extremely week standards for recording and playback - it aims mostly at listener enjoyment, surely miming a real experience.
But I was mainly addressing that "realism" in stereo is a weak single descriptor.