Earlier quoted context omitted.
I don't see a reason why playing violin would be impossible given a couple hundred or thousand hours of deliberate practice. Jumping higher than the WR is a straw man, since that goes for anything - there can only be one #1. However, people can increase their vertical leap substantially if they train things like olympic lifting and plyometric. See The Vertical Jump Development Bible for example programs on how 12-50…
I really tried the violin (I think it is one of the most beautiful instruments), and for more than 'a couple of hundred hours' and it did not work for me. I'm not sure how to articulate the mismatch but I'm pretty good with other musical instruments but between the violin and me it never was love to play it, just endless frustration. At least I can appreciate others that play it a bit better :)
Source: I learned violin around age 13 after already reaching an "expert non-professional" level in piano, found it very challenging and eventually gave it up after seven years of study.