1 1 2007 Text 1 If you were to examine the birth certificates of every soccer player in 2006’s World Cup tournament, you ①would most likely find a noteworthy quirk: elite soccer players are more likely to have been born in the earlier months of the year than in the late months. If you then examined the European national youth teams that feed ②the World Cup and professional ranks, you would find this strange phenomenon to be ever more pronounced. What might account for this strange phenomenon? Here are a few g③uesses: a) certain astrological signs confer superior soccer skills; b) winter born babies tend to have higher oxygen capacity, which increases soccer stamina; c) soccer-mad parents are more likely to conceive children in springtime, at the annual peak of soccer mania; d) none of the above. Anders Ericsson, a 58-year-old psychology professor at Florida State University, says he believes strongly in “none of the above.” Ericsson grew up in Sweden, and studied nuclear engineering until he realized he would have more opportunity to conduct his own research if he switched to psychology. His first experiment, nearly 30 years ago, involved memory: training a person to hear and then repeat a random series of numbers. “With the first subject, after about 20 hours of training, his digit span had risen from 7 to 20,” Ericsson recalls. “He kept improving, and after about 200 hours of training he had risen to over 80 numbers.” This success, coupled with later research showing that memory itself is not genetically determ④ined, led Ericsson to conclude that the act of memorizing is more of a cognitive exercise than an intuitive one. In other words, whatever inborn differences two peo...