I think some people will naturally be able to play a little faster than other people, and eventually everyone will have some kind of personal limit. However, many of us will get frustrated and give up before we genuinely reach our personal limit, in my opinion. Anyway, some people are just naturally faster, so it's better to set goals against yourself, rather than against gifted gods like DiPiazza or Bill Dickens. We all need to remember music is an art form, not a sport. That said, I still wish I could play faster!
