You also need a generous and patient investor. ;-) It's being done. There are people who are researching novel ergonomics and designs for instruments. I don't

You also need a generous and patient investor. ;-) It's being done. There are people who are researching novel ergonomics and designs for instruments. I don't know of one working on the violin specifically, but certainly viola and double bass. Here's one: https://uptonbass.com/shop/upton-bass-ergo-double-bass-by-aes-2019-opus107/ https://uptonbass.com/shop/upton-bass-ergo-double-bass-by-ae... And in the world of double basses, there's enough variation that players do choose basses that fit their bodies. For instance my bass has sloping shoulders that probably affect tone and volume, but that allow me to play with better posture. And designs have changed over the past few centuries. Older basses with super long necks get shortened. I've also read about a piano professor who's researching pianos with narrower keys, for players with smaller hands, and has discovered that even players with big hands prefer it, who'd-a guessed? Given the fact that a player has to adapt their technique without taking themselves out of competition for gigs, or getting injured, before even finding out if something is an improvement, maybe a realistic rate of change is pretty close to the actual rate of change. Different materials are being explored. There have already been start-ups making carbon fiber double basses. I'm both a musician and a technologist, but I have to admit that I separate those two activities for the most part. I do technology all day, and playing music is my escape from ... user interfaces. Many musicians arrive at the point where they say: Time to stop chasing gear, and start playing music.