That said
I'm sure a violin 10,000 euros is way better than a 100 euros one.
But from there to "a stradivarius is way better than what violin makers of
today build" (if that's what you meant), there is a lot of hype and magic
thinking involved, which is very surprising from you.
"A Stradivarius is way better than what violin makers of today build"
is not what I wrote and certainly not what I meant.
And yes, there's lot of hype and a lot of ill-founded aversion to
contemporary technology. I'm pretty sure that if some violin maker
would discover a way to use some of today's high-tech materials
to build a really good violin, most of the 'well-thinking' music
world would want to burn him at the stake (along with his violins).
I read about this guy in 1983, in a science magazine. I think he
cracked the code: