http://www.nytimes.com/2012/01/26/books ... l?_r=1&hpw
And here is the web site for the book: Guitar Zero by Gary Marcus


There are two main and opposing reactions to expect when you see a display of excellence... awe, wonder and inspiration or discouragement as you think to yourself, I'll never be able to do that! Your initial reaction is just that, your initial reaction. Then you can have a think about it and decide whether you're going to be discouraged or not since you really wanted to learn the thing anyway, you may as well find out what its actually like. And if you have the desire to do something, then simply filter out all discouraging thoughts and say to hell with it, I want to do this so I will! Being an adult, you will find making that kind of decision much easier than a child will.Musical instruments are really challenging, and don’t come easily for anyone, but once you’ve seen someone great, it’s easy to get discouraged.