I saw an article a while back about how, much like counterfeits that fool all the experts look amateurish after a few decades, the violins that compare well to

I saw an article a while back about how, much like counterfeits that fool all the experts look amateurish after a few decades, the violins that compare well to Stradivariuses in these double blind studies eventually get considered inferior to new violins or at least go out of style. Something really funny is going on with how we perceive these old Italian violins and it's not all reputation-based placebo effect. Somebody also discovers a different "secret of the Stradivari" every decade or so. Thirty years ago people were going to make carbon-fiber composite violins that imitated the mechanical properties of the wood used in them, for example.