Well I could beat you in the head with a stick until you become a savant, but I don't like the prospect of jail.
Personal viewpoint leads me to say there are limitations put onto the mind when you grow up, it's more or less how you grew up early that decides who you will most likely become. I myself have a problem with discipline yet I am no troublemaker, but the problem is that I don't push myself to do things and eventually decide whether or not it's worth continuing. So far art has been worth continuing and I haven't given up on it, but writing has always been easy for me. It's mostly because art follows the right side of the brain where writing follows the left side of the brain.
Music is the same as art, it's for the right side of the brain mostly, hence the savant joke - which admittedly was in poor taste - that would mean you'd understand it easier to learn if you thought more with your right side of the brain. You have to turn down the left side of the brain and crank up the right side to learn it easier, but it's not the only way and you definitely can learn to be a virtuoso, it's not impossible because nothing ever is. Just push yourself and - it was inevitable to say - believe you can become great with this instrument.