Equating complexity with difficulty isn't necessarily true. In drawing, one of the hardest things you can do is to draw a perfect circle freehand - every time.

I've been playing guitar for 45 years, and mandolin and tenor banjo/guitar for nearly 35 years, plus keyboards, bass and various others. I took up the violin recently, and I'll consider that I'm getting somewhere with it when I can - every single time - hit the note I want with perfect intonation. In other words, the equivalent of constantly drawing that perfect circle...