So what are some historical comparisons for the best case scenario? I mean, if he's really "A once-in-a-generation talent", who do we have to compare him to and hope for?The one name to obviously come to mind is Junior. Looks like he was drafted in 1987 as a 17 year old (birth date very close to Harper's), signed in 1987, and played some A- ball in 1987. He spent 1988 in A and AA and debuted in the majors in 1989. Are there any comparable examples of something happening faster? You know, outside of some midget in 1906 or something weird like that?Looks like Junior's path would be comparable to Harper playing in the Arizona Fall League in 2010 and Potomac and Harrisburg in 2011 with no September call up and a 2012 debut. I understand that might be pie-in-the-sky best-case-scenario thinking. But, when someone is referred to as "A once-in-a-generation talent", that shouldn't be impossible. Again, not knowing much baseball history, I don't know what kind of hype Junior received and if his rise was a surprise.Thanks for the info. Being a lifelong DC area resident, I'm new to this whole baseball thing.