http://www.baseballamerica.com...-younger-than-ever-a
Here's the insane paragraph:
"It also adds more pressure on players to stand out at a younger age and places greater rewards on early physical maturation. Traditionally, by the time a player in Latin America is 18, he's considered old. Now, a 2017 prospect who is 16 and still unsigned is looked at as a "passed over" player with lower value, especially if teams have already spent most of all of their bonus pool money for the signing period."
The basic question "Can you predict the future of a 14 year old?" was not answered. But what is clear to me is that there is a wide application of The Law of Large Numbers.