I started playing over forty years ago and, although I have only played guitar about ten of those forty years, I have never been able to play fast. When I was thirty I spent one year practicing scales for one hour per night. Although I noticed an improvement in speed, I never became anywhere near what I would call fast. I'm inclined to believe that "talent" or the "ability" to play fast is a big part of the equation. What are your thoughts on the subject?