According to "Outliers" (Gladwell), proficiency in anything is a result of practice.
“Practice isn't the thing you do once you're good. It's the thing you do that makes you good.”
― Malcolm Gladwell, Outliers: The Story of Success
“In fact, researchers have settled on what they believe is the magic number for true expertise: ten thousand hours.”
― Malcolm Gladwell, Outliers: The Story of Success
And this one is my favorite - discussing analysis of artists that make 1st Chair:
“Once a musician has enough ability to get into a top music school, the thing that distinguishes one performer from another is how hard he or she works. That's it. And what's more, the people at the very top don't work just harder or even much harder than everyone else. They work much, much harder.”
― Malcolm Gladwell, Outliers: The Story of Success
So, 10,000 hours of pinball?